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  • Orders & Payment
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  • Hardtail MTB
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Buying Guides

Bicycles Online is a purely online business, we don't have a physical showroom, but operate from our head office / dispatch centre.

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Not sure which bike to buy? Let us help you decide.

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We can help you find the perfect bike size for you.

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Mountain bike technology has improved exponentially in recent years.

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Road bikes are one of the simplest forms of bikes on the market.

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  Commuting to and from work can have multiple benefits for the environment, mental health and physical health.

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E-Bikes take what is amazing about cycling around town, through the mountains and daily commuting and enhance it.

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Buying your child a bike can be an exciting time for both you and them, as this is their first chance to experience the enjoyment of cycling.

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If you're the type that likes to save a buck, our ex-demo bikes may sound interesting.

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As simple as a bike can be, a lot of the terminology and names can be quite confusing.

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The material of which a frame is constructed will have a huge impact on how it rides.

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Orders & Payment

Bicycles Online offer a number of payment methods including Visa, Mastercard, American Express, Paypal, Paypal- Pay in 4 and ZipMoney interest-free finance, Apple Pay, Google Pay, and Direct Deposit.

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With new online and in-store electronic payment systems offering customers greater convenience and simplicity, at Bicycles Online we can now offer you even more flexibility when it comes to purchasing your new Bicycle.

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Unfortunately we do not allow changes to an order once it has been placed.

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We understand many of our customers are willing to go the extra step and customize their bikes, giving it a more personal feel.

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Qantas Points will be earned on the price of the goods only and not on any GST, delivery charges or taxes.

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Shipping & Tracking

Once your order has been dispatched from us, you will receive an email which will include a tracking number and what courier the item was sent with.

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The estimated delivery times for bicycle is as follows.

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All products are in stock and ready to ship from either our Sydney or Melbourne warehouse.

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Here you'll find more information about the different shipping methods we offer.

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Unfortunately we do not allow local pick-up or return of orders from or to our warehouse.

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We require a signature for our deliveries and hence we prefer commercial addresses where there is someone present all day to receive the goods.

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Unfortunately we do not ship bikes, components, accessories or apparel outside the country.

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Returns & Exchanges

We’re so confident that you’ll love our extensive range of bikes, that we’ll let you return the bike for free in the first 14 days if you don’t.

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Here you'll find in-depth information on our Returns Policy.

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Damage caused from improper use, abuse of the policy or incorrect assembly - such as pedal threads being damaged, dirt on the tyres, scratches on the frame, or any other damages, will be charged at full retail rates.

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If you notice or discover an issue, contact us within the first 14 days for a resolution.

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We get it, we all love to find deals and save money that's why we have a Post Sale Guarantee.

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Warranty Portal

A lot of what defines the warranty of your specific purchase from Bicycles Online depends upon the product’s intended use.

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To submit a warranty request, simply click here and fill out the forms - the more information you provide, the better.

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Please contact Bicycles Online After Sales Service via our contact form for all warranty and product support requests.

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Please contact Bicycles Online After Sales Service via our contact form for all warranty and product support requests.

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The frequency you should get your bike serviced will vary depending on the frequency you ride it.

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Your suspension components need to be serviced on a regular basis to keep working properly and also for warranty reasons.

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About

We are an Australian owned, online specialty retailer of road bikes, mountain bikes, parts, accessories, and clothing.

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Just like all bike riders, we play our part for a brighter future.

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We pride ourselves on our ability to import products efficiently.

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To learn more about our Fleet Programme, please click here.

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Looking to hire or rent a Polygon bicycle in Sydney? Visit our bike rental shop.

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Bicycles Online Unit Trust, Bicycles Online Pty Ltd, Bikes Online and its affiliates ("Bicycles Online", "we", "our", "us") is committed to protecting your privacy and respect and uphold your rights under the Australian Privacy Principles (APPs) contained in the Privacy Act 1988 (Cth).

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General Terms and Conditions These terms and conditions apply to the use of this website and the ordering, purchase, fulfilment and delivery of Products from www.

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Assembly Guides

Congratulations on your new bike! For us, there’s nothing more exciting than building your bike.

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Assembling your new bike is one of the most exciting tasks ever, we agree.

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This article will guide you through how to install the front wheel on your new bike.

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Assembling your new bike is one of the most exciting tasks ever, we agree.

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Dropper posts are a game changer for mountain biking, allowing you to have your optimal pedalling position for climbing and with a simple press of the lever, you can push the saddle down to slay the descents.

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This article will guide you through how to install the basket on your Polygon Sierra Oosten.

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This article will guide you through how to install the mudguards on your Polygon Sierra Oosten.

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Exciting times ahead! This article will guide you through what comes with your new bike and how to unpack it.

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In case you need to re-pack your bike for travelling or shipping, follow this step-by-step guide to ensure it will reach its destination in great shape, by reducing the chances of damage in transit.

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Bike Care

Welcome to the Bicycles Online Service Network.

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The frequency you should get your bike serviced will vary depending on the frequency you ride it.

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Your suspension components need to be serviced on a regular basis to keep working properly and also for warranty reasons.

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A clean bike is a fast bike - we can’t stress this enough, keeping your bike clean is not only beneficial to your components lifespan and performance, it’s also good for morale.

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Cleaning and maintaining your drivetrain might not be the most exciting task in the cycling world, but it sure is very important.

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Unfortunately we can’t be out riding bikes at all times, we still need to sleep or eat at some point of the day.

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Transporting your bike is usually a sign of good times ahead! For that we are more than happy to provide resources on how to transport your bike safely, so there are no hiccups during the journey and you can make the most out of your riding time.

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Adjustments & Fit

When browsing for your next bike you may sometimes consider the possibility of upgrading some parts in order to make the bike more suitable for your riding style.

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After assembling your new bike, the first thing to do is the initial bike fit, in other words, customizing the bike measurements according to your body dimensions in order to achieve the most effective riding position.

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Correctly setting up the suspension is crucial for proper handling of your bike.

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One of the most simple things you can do to your bike to improve the quality of your ride is checking and adjusting your tyre pressure periodically.

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There are three main types of pedals, Flat Pedals, Mountain Bike Clipless and Road Clipless.

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Workshop Series

Ride your bike enough and you’ll understand the importance of performing a periodical safety check.

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Assembling your new bike is one of the most exciting tasks ever, we agree.

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Beside being a lot of fun, bikes are also a way of transport that require regular maintenance just like a motorbike or a car.

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Welcome to the Workshop Series, today we’ll be guiding you through the rear derailleur adjustment for a mechanical, or cable activated groupset.

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Welcome to the Workshop Series, today we’ll be guiding you through the rim brake adjustments.

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Welcome to the Workshop Series, today we’ll be guiding you through the disc brake adjustments.

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Having a flat while out riding is never a good feeling, but if you master the tube replacement practice you’ll be able to get back on the road, or trail, in no time.

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A lot has been discussed around tubeless tyres and how they can be beneficial for a number of reasons.

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A clean bike is a fast bike.

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Cleaning and maintaining your drivetrain might not be the most exciting task in the cycling world, but it sure is very important.

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Owner Manuals

To see the Polygon Bikes User Manuals, click here.

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To see the Marin Bikes User Manuals, click here.

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Please refer to the links below for more information on your Rockshox components:   Rockshox Suspension Setup and Tuning Guide Rockshox/Sram Service Resources Rockshox/Sram User Manuals Rockshox Service Intervals .

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Please refer to the links below for more information on your Fox components:  Fox Factory Tune Fox Tuning Guides Fox User Manuals Fox Service Intervals     .

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Please refer to the links below for more information on your SR Suntour components:   SR Suntour Owners Manuals SR Suntour SAG Tool SR Suntour General Suspension Fork Manual SR Suntour Rear Shock Owner's Manual .

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Please click here for more information on your Shimano components: Shimano Manuals & Technical Documents .

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Please click here for more information on your Sram components: Sram Service Archive .

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In this article you'll find all technical information, including service instructions for your bike components.

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Archive

To see Polygon Bike Archive, click here.

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To see Marin Bike Archive, click here.

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Please click here for the Rockshox archive.

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Please click here for the Fox archive: Fox Archive .

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Please click here for the SR Suntour archive: SR Suntour Archive .

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Hardtail MTB

What size are the wheels? All cascade models (2, 3, 4) and frame size come with 27.

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What size are the wheels? The Premier 4 and 5 come with 27.

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What size are the wheels? The Syncline 2, 3 and 5 come with 27.

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What size are the wheels? The Xtrada 5, 6 and 7 come with 27.

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What size are the wheels? The Cleo 2 comes with 27.

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What size are the wheels? The El Roy comes with 29" wheels.

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What size are the wheels? The Pine Mountain series come with 29" wheels.

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What size are the wheels? The San Quentin series comes with 27.

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What size are the wheels? The Team series comes with 29" wheels.

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What size are the wheels? The Bobcat Trail series come with 27.

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What size are the wheels? The Bolinas Ridge series come with 27.

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What size are the wheels? The Wildcat Trail series come with 27.

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Dual Suspension MTB

What size are the wheels? The Siskiu D5 comes in 27.

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What size are the wheels? The Siskiu D24 series comes in 24 inch wheels only.

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What size are the wheels? The Siskiu T7 and T8 come in 27.

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What size are the wheels? The Vander T series across all sizes are 27.

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What size are the wheels? Across the entire Alpine Trail range you can expect a standard 29 inch wheel platform for all models.

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What size are the wheels? Across the entire Rift Zone 27.

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What size are the wheels? Across the entire Rift Zone 29 range you can expect a standard 29 inch wheel platform for all models.

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What size are the wheels? The Rift Zone Jr comes in 2 different wheel sizes, 24 inch and 26 inch.

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Road & Gravel

What riding style is this geometry intended for? Perfect for entry level road cyclists looking to take on their first Gran Fondo, conquer their first triathlon or get involved with their local riding group on casual endurance rides.

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What riding style is this geometry intended for? This is a modern road bike with an accommodating endurance geometry for a more upright riding position.

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What riding style is this geometry intended for? An upright commanding riding position to tackle rough gravel roads or city streets with a priority on stability and control How many gears does this bike come equipped with? A wide ranging drivetrain with variations across the range from 2x9spd to the latest 1x11spd Gravel Specific system from Shimano Are the wheels tubeless ready? The wheelset is ready to go tubeless when you'd like, all you need is some tyres and tubeless kit from our website and you can do the conversion at home.

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What riding style is this geometry intended for? Long days on the saddle discovering new gravel trails just for the sake of exploring.

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What riding style is this geometry intended for? All day touring off road or back country scenic roads How many gears does this bike come equipped with? 3x9spd wide ranging touring centric gear set Are the wheels tubeless ready? The wheelset is ready to go tubeless when you'd like, all you need is some tyres and tubeless kit from our website and you can do the conversion at home.

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What riding style is this geometry intended for? An upright MTB based riding position for tackling both smooth and rough roads How many gears does this bike come equipped with? The Gaselt range offers bikes with 1x11spd drivetrains and also 2x8spd drivetrains at the entry level Are the wheels tubeless ready? The wheelset is ready to go tubeless when you'd like, all you need is some tyres and tubeless kit from our website and you can do the conversion at home.

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What riding style is this geometry intended for? The Lombard has an upright position that's as at home commuting into the city as it is rolling round country lanes on the weekend How many gears does this bike come equipped with? 2x9spd drivetrain Are the wheels tubeless ready? Unfortunately these wheels are not tubeless ready because are built with durability in mind for riding off into the sunset where sealant top ups are not possible.

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What riding style is this geometry intended for? The Nicasio has an upright position that's as at home commuting into the city as it is rolling round country lanes on the weekend How many gears does this bike come equipped with? There are several models that range in gear sets of 2x8spd to 2x10spd Are the wheels tubeless ready? Unfortunately these wheels are not tubeless ready because they are built with durability in mind where you might be hitting potholes or for riding off into the sunset where sealant top ups are not possible.

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Path & Pavement

What size are the wheels? The Path Series features a 700c wheel size (29" diameter).

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What size are the wheels? The Heist series comes with 700c (29 inch) wheels.

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What size are the wheels? The Urbano comes with 20" wheels.

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What size are the wheels? The Fairfax Series features a 700c wheel size (29" diameter).

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What size are the wheels? The Muirwoods come with 700c wheel size (29" diameter).

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What size are the wheels? The Presidio range comes with 700c wheels (29 inch).

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What size are the wheels? The DSX series comes with 700c wheels (29 inch).

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What size are the wheels? The San Rafael series comes with 700c wheels (29 inch).

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What size are the wheels? The San Anselmo comes with 700c (29 inch) wheels.

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What size are the wheels? The Kentfield series comes with 700c (29 inch) wheels.

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What size are the wheels? The Larkspur comes with 27.

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E-Bikes

The bike comes with 29x2.

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What size are the wheels? The Gili Velo comes with 20" wheels.

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What size are the wheels? The Path E comes with 27.

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What size are the wheels? The Alpine Trail E series comes in a "mullet" configuration (27.

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What size are the wheels? The Sausalito comes with 650b (27.

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Kids Bikes

What size are the wheels? The Siskiu D24 series comes in 24 inch wheels only.

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What age group is this bike intended for? This bike is intended for riders from 5-8yo.

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What age group is this bike intended for? This bike is intended for riders from 7-12yo.

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What age group is this bike intended for? This bike is intended for riders from 5-8yo.

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What age group is this bike intended for? This bike is intended for riders from 5-8yo.

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What age group is this bike intended for? This bike is intended for riders from 7-12yo.

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What age group is this bike intended for? This bike is intended for riders from 7-12yo.

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What size are the wheels? The Rift Zone Jr.

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What age group is this bike intended for? This bike is intended for riders from 5-8yo.

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What age group is this bike intended for? This bike is intended for riders from 7-12yo.

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What age group is this bike intended for? This bike is intended for riders from 5-8yo.

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What age group is this bike intended for? This bike is intended for riders from 7-12yo.

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Dirt Jumpers & BMX

What size are the wheels? This model is fitted with 26 inch wheels.

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What size are the wheels? This model is fitted with 26 inch wheels.

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What size are the wheels? This model is fitted with 20 inch wheels.

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What size are the wheels? This model is fitted with 20 inch wheels.

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What size are the wheels? This model is fitted with 26 inch wheels.

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No updates at this time

CLOSE ARTICLE

Kids Bike Buying Guide

Buying your child a bike can be an exciting time for both you and them, as this is their first chance to experience the enjoyment of cycling. Everyone remembers their excitement when they first swung a leg over a bike and felt the wind through their hair. The realisation that you can explore further, easier and faster than ever before is mind blowing. Choosing the right bike is vital to ensuring they have positive and reassuring first impressions. 


 There are so many different styles to choose from, how do you know which one is the best? Well, it's all about where your child wants to ride, how they will use the bike and what terrain they will be riding on. 


Some people might prefer a mountain bike because they like to go off-road, or maybe someone has always wanted to ride their bike down the street on the pavement. You might notice that some bikes come with training wheels and others don't.


This article will help you understand what kind of bike would work best for your child by considering their age, height, weight, skill level and other factors, including price range.






 

SIZING 


Buying the right size bike is integral to ensuring your child has the most enjoyable experience possible. While we all understand that kids grow extremely fast and parents don’t want to purchase a new bike every year, a bike that’s too big may have some serious negative effects. It is about promoting the healthy lifestyle of cycling to your child and showing them how bikes can change their lives.


If a bike is too big, hopping on and off the bike will become a difficult and scary experience for your child. A bigger bike will become intimidating as it is harder to control and less stable for the rider. These negative effects will reduce confidence and enjoyment, which will deter them from riding the bike. 


We recommend buying a bike that fits your child at the time. If your child is in between sizes, it is better to look at the bigger size to ride it comfortably. If your child is already a confident and skilled rider, they can often ride a bigger bike than a child who is less comfortable on a bike. 


When considering size, we also recommend considering the weight of a bike. The lightest bike you can purchase within your budget is the best bike to get. A more lightweight bicycle is easier to pedal, control and leads to a more enjoyable ride for your children. 

 

Many people begin their journey towards buying their children a bike by using their age as a measure. Unfortunately, not all children at the age of 5 are the same height, neither are children at age 7 or 1,0 etc. Using your child's inseam is the best way to decide what size they need.


 


Kids Bike Sizes Chart showing sizing by wheel size, age, inseam, and height





RIDING STYLES


Children's bikes come in as many varieties as adult bikes these days. It is important to understand the style of riding your child wants to do. For example, if your child wants to get into mountain biking or off-road, riding a flat bar commuter style bike will be dangerous and not be up to the rigorous riding. It is best to get a deep understanding of what your child will be riding. 


It is also important to be realistic about the riding they will be doing. Sometimes you will find that your child wants a mountain bike or a BMX but, if they are predominantly commuting on the streets, it could end up being a less enjoyable ride for them. 


Let's go through our range of kids bikes and what they are best for.





  COMFORT  





 

Comfort or “cruiser” bikes are exactly as the name suggests, designed for comfort and cruising. These bikes provide an upright and comfortable riding position for kids looking to ride leisurely. They are not designed for speed or efficiency. They are designed to be ridden on leisurely rides to school, the movies or just along the beach with their parents. 


Comfort bikes usually have racks and baskets from the factory. They are optimum for carrying books, clothes, or toys. They also have mudguards and the required accessories to keep your child as dry as possible if the weather turns bad. 


If your child wants a more efficient bike for commuting to school or something faster on the road, a flat bar road-style bike will be better suited. An MTB will be much better if they want to go off-road and get rowdy on rough terrain. 





  RIGID MTB  




Rigid mountain bikes are perfect for smaller children to ride wherever they choose. Because children are so light and small, when a tyre is inflated to the correct pressure, it provides more than enough traction and comfort.  They are the perfect entry point for those with a passion for exploring.


These bikes have been designed around hardtail mountain bikes, so the bikes remain stable yet fun to ride. They have no suspension to reduce the weight, enhance efficiency and reduce costs. Thanks to the cost savings, you can often see better components on the rest of the bike. Often with one gear up front and 8 at the back, they are the perfect bike for kids needing gears.




If your child wants to explore the town, experience the freedom a bike provides and enjoy the sensation of speed, these bikes are perfect for your child. They are versatile and a great way to see which style of riding they gravitate to the most/  If they want to get more serious off-road, a mountain bike would be better suited for them.

 

 



  HARD TAIL MTB  






Hardtail mountain bikes have front suspension but a solid rear end. They give your children a new avenue of riding to explore. Instead of jumping in puddles, your child can now ride through them as fast as possible.






Stronger tyres with a knobbly texture provide extra traction with increased puncture protection. They have front suspension to help absorb the bumpy roots and rocks. Disc brakes are more powerful, more reliable and safer than their v-brake siblings. Hardtail mountain bikes are the perfect entry point for children who want to push boundaries and explore the outdoors.




The downside to these extra features like suspension and stronger components is weight. Hardtail mountain bikes are heavier than your city bikes or rigid mountain bikes. Wider and knobby tyres have increased drag and are harder to pedal for longer distances. Our dual suspension bikes may be better suited if your child wants to explore the outdoors more and take on more difficult terrain. If they want a more efficient ride, check out our city bikes.

 

 

 


  DUAL SUSPENSION MTB   





Dual Suspension mountain bikes are primarily designed for off-road use. With both front and rear suspension, both wheels move with the terrain for increased traction and safety. As your child begins to charge harder, they need the improved performance of our D24 range.




Air sprung suspension is customisable to weight and is adaptable as your child grows. The powerful disc brakes are strong enough to stop your child safely from warp speed. The bike's frame and geometry have been optimised for manoeuvrability yet also stability. 


Here at Bicycles Online, we believe that when you spend this much on a bike for your child, you want it to last for a long time. Not only is the air suspension tuneable as your child grows, but we also use reach-adjustable brake levers, and the bike can fit 26-inch wheels in the future.




Because these bikes have been optimised for off-road riding, they can be a chore to ride on the road. If your child is excelling at riding off-road, the D24 series will be there every step of the way. These bikes are not ideal for street riding or getting to and from school. Hardtail mountain bikes are much more versatile than a dual suspension bikes and will suit children doing a bit of everything.


 



  BMX & DIRTJUMPER   



 

BMX and Dirt Jump bikes are specially designed to jump, spin and be as agile as possible. They have low frames and seat posts which are not ideal for longer rides because riders have to stand when pedalling. However, if your child wants to hit the pump track, ride the local dirt jumps or skate park, these bikes are for them. 


While most BMX bikes come with 20-inch wheels, they are also available in 16 and 18-inch wheels to suit riders of shorter heights. Frame sizes are measured in inches. The bigger the frame, the taller a rider can be. Our BMX range is ideal for children looking to get their first experience riding this style of bike. 




The Polygon Rudge is the ideal Freestyle bike for BMX and DirtJump use. Built around a Hi-TEN steel frame and fork for added strength and durability, this bike is capable of handling aggressive moves and big landings. We also spec a “Giro” so the bars can spin an infinite amount without any chance of damaging the cables.  


Dirt Jumpers are essentially big BMX bikes. Although they have front suspension it is often run really stiff to avoid compression on jumps. They use 26 inch wheels for increased stability compared to a BMX but they are more agile compared to a standard MTB.




Dirt jumpers are only available at single speed. This means when the hills get steep there is no way to change gears and make pedalling easier. The low frame and short seat post means riders can't sit down and pedal as easily.


If your child wants to get tonnes of air time at the trails or skate park, these bikes are for them. If your child has a short easy commute these bikes are an amazing way to make their commute more exciting. If they want to ride further or explore the trails more than A mountain bike would be better suited for them. If they want a light, easy bike to ride, try a city bike.

 

 






CONCLUSION


Choosing a bike for your child is an exciting time. There are so many styles to choose from, and it can be hard deciding which one will be the best fit. It’s important not to buy them something they don't want or even worse - what you think they might like. The only way to know what's best is by asking them questions about their biking interests and making sure that there are no compromises between quality of the bike and price range (of course). Check out our range of kids bikes now at Bicycles Online.