Size Guide : AUSTRALIA

Buying Guides

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

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

Mountain bike technology has improved exponentially in recent years.

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

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

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

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.

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

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

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

A quick look at Electric Scooter Laws in Australia.

Shingleback racks are born and bred in Victoria's High Country and have built a reputation for being fit for purpose and above all - durable.

BikesOnline wants to see everyone improve their lives through the simple joy of riding a bike! We’ve always tried to make it easy to get riding and offer the following guide for people who qualify for the NDIS and may be entitled to get a bicycle or eBike hrough this program.

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.

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

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

Consumer Guarantee

At BikesOnline we want to make sure our customers are supported to ride more and stress less.

At BikesOnline we are committed to providing you with the best possible prices.

As bike riders we can all agree - accidents happen - and as much as we would love to avoid it, sometimes they are inevitable.

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

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

Shimano is synonymous with quality and durability in the cycling industry.

Sram, Rockshox, and Zipp are esteemed brands known for their excellence in the cycling industry.

At BikesOnline, we're proud to offer an exceptional warranty experience that surpasses industry standards.

Shipping & Tracking

Parts & Accessories Small Parcels Bikes & Bulky Items Standard Shipping Free Over $99 orders $9.

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.

The estimated delivery times for bicycle is as follows.

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

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

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

Returns & Exchanges

Free 30-Day Bike Returns We're incredibly confident that you'll love our wide range of bikes; however, if for any reason you don't, we've got you covered with our free 30-day return policy.

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.

At BikesOnline, we believe that finding the perfect saddle for your bike is essential for a comfortable and enjoyable ride.

At BikesOnline, we always look to provide our customers with the best possible shopping experience, which is why we offer a large range of high-quality cycling gear and apparel, including bib-shorts, chamois & swimwear/wetsuits.

About

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

BikesOnline is a purely online business - we don't have a physical showroom but operate from our head office.

We pride ourselves on our ability to import products efficiently.

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

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

To learn more about our Privacy Policy, please click here.

General Terms and Conditions.

Assembly Guides

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

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

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

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

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

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.

This article will guide you through how to install the mudguard on your Fox 36 and 38 suspension forks.

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

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.

All our bikes with a dropper post will not have their lever installed onto the left side of your handlebar, next to the brake lever clamp on the handlebar.

Bike Care

The BikesOnline Service Network is a convenient way to get your bike repaired or serviced if something doesn't feel right, right out of the box.

To stay safe on the trails and road, it is important to do a safety check to ensure your bike is in running order! Jared goes over his top tips for a pre-ride check that you can follow along before a ride.

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

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

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.

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

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

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.

Adjustments & Fit

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.

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

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.

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

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.

Workshop Series

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

In this biking tutorial we tackle common issues riders face on their journeys.

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

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

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

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

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

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.

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

Hey there! We understand your worries, and it's great that you're keeping an eye out for potential issues.

Owner's Manuals

To see the Polygon Bikes User Manuals, click here.

To see the Marin Bikes User Manuals, click here.

To see the THOK Bikes User Manuals, click here.

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 .

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 .

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 .

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

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

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

Hardtail MTB

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

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

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

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

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

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

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

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

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

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

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

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

Dual Suspension MTB

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

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

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

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

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

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

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

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.

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.

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.

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

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.

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.

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.

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.

Path & Pavement

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

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

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

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

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

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

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

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

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

E-Bikes

What is the main difference between the N8E and the THOK TK-01R? The main difference between the N8E and the THOK TK-01R is the frame.

What is the main difference between the T7E and the N8E? The main difference between the T7E and the N8E is the drivetrain.

What is the main difference between the T6E and the T7E? The main difference between the T6E and the T7E is the suspension.

The bike comes with 29x2.

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

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

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

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

What is the best use for the THOK TK-01R? The THOK TK-01R is a great choice for riders who are looking for a high-performance E-MTB.

Kids Bikes

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

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

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

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

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

What size are the wheels? The Rift Zone Jr.

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

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

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

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

Dirt Jumpers & BMX

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

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

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

Technical Manuals

CLOSE ARTICLE

Size Guide

We can help you find the perfect bike size for you. Like pieces of clothing or apparel, bikes also come in different sizes according to the rider measurements. Sizes usually range from Small to Extra-large, but some models will offer Extra-small to Double Extra-large.

To find out what’s the most appropriate bike size for you we have developed a sizing tool and called it “Bike Fit Calculator”. On your desired bike product page, you’ll find the link to the calculator on the side bar. This is what it looks like:

Click “Find my Size” and input gender and height. You can refine the results by inputting your legs and arms lengths but if you do not know those measurements, don’t worry - the Fit Calculator will automatically load general data based on your height.

By the end of the process the Fit Calculator will inform you what would be the perfect size for you, with something similar to the image below:

If you’re in a rush you can also just base the decision on your height. On the bike size selection menu you’ll be able to see the height ranges relative to each bike size.

We provide extensive resources to help you find the perfect bike size for you, nevertheless in case you still find the bike to be too big or too small after receiving and assembling it, you can rely on our Free 30-Day Bike Returns policy and exchange the bike for a different size, subject to stock availability.

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