How To Choose The Right Bike Size | Bike Fit Guide

by Hoffy Cycles.

Choose The Right Bike Size - Cyclist On Road

Cycling is one of the most popular forms of exercise in Australia, with around 3.5 million Aussies regularly using bikes for transport or recreation1. It’s easy to see why—our country is filled with stunning natural beauty, and cycling is one of the best ways to experience it, while getting the exercise needed to stay healthy.

If you’re considering joining the masses of cyclists across the country, one of the first questions you may have is how to choose the right bike size. It’s an important question—ill-fitting bikes can lead to knee and back pain, discomfort while you’re riding, and difficulty in reaching your optimum performance.

In this article, we’ll explain how the right bike size is determined, and provide a comprehensive bike fit guide so that you can select the right product for yourself.

How is bike size determined?

Height is the easiest way to determine the correct bike size for yourself. A bike’s size is usually determined by the size of its frame, which tends to be measured in centimetres for road bikes, and inches for mountain bikes.

To figure out the right bike size for yourself, check out our guides below.

Bike Fit Guide

Road bike

Height Frame size Size
147cm – 157cm 47cm – 48cm  XX-Small
157cm – 167cm 49cm – 50cm  X-Small
160cm – 167cm   51cm – 53cm  Small
167cm – 175cm 54cm – 55cm  Medium
175cm – 183cm 56cm – 58cm  Large
183cm – 190cm 58cm – 60cm  X-Large
190cm – 198cm 61cm – 63cm  XX-Large

Mountain bike

Height Frame size Size
147cm – 157cm 13” – 14” X-Small
157cm – 167cm 15” – 16” Small
167cm – 178cm 17” – 18” Medium
178cm – 185cm 19” – 20” Large
185cm – 193cm 21” – 22” X-Large
193cm – 198cm 22” – 24” XX-Large

How to measure bike size?

If you already have a bicycle but aren’t sure of the frame size, check this comprehensive guide on how to measure a bike frame. It will allow you to measure your bike’s frame to determine whether it’s suitable for you.

At Hoffy Cycles, we have a team of experts that can advise you on the correct size for our bicycles, as well as provide you with a great deal on a high-quality bike. Pop into our Sandgate store, and we’ll be happy to help.


  1. 2019, 3.43 million Australians ride bikes for transport or recreation each week, Austroads