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SIZING GUIDES AND BIKE SIZE CALCULATOR

Bike Size Guides and FAQs

Click on the options below to get more information about the type of bike you're interested in.


Bike Sizing FAQ's

When buying a new bike, sizing is vital. Getting a bike that doesn't fit won't only mean you'll be uncomfortable but you're instantly on the road to disliking cycling - And that's a bad thing. Even if you know your size, have a read through our handy guide before buying a bike to check your new ride is going to be your perfect match.

HOW ARE BIKES SIZED?

All adult bikes are measured by their frame size. This is typically the length of the seat tube: the near-vertical tube that the saddle and seat post slide into. Manufacturers will measure these slightly differently. However, the rule of thumb is to measure from the centre of the bolt which fastens the crank arms, all the way up the frame, to the top of the seat tube. Some brands (especially American) stop short of the top, only measuring to the point where the top tube meets the seat tube.

WHAT TYPE OF BIKE DO I NEED?

It's important to decide what sort of bike you need. There are three main categories of bike: road, mountain and commuter. Please note that there are many sub categories such as sportive road bikes and 29er mountain bikes, but generally the sizing will be the same.

DO SIZES VARY FOR DIFFERENT TYPES OF BIKE?

It's worth noting that road and mountain bikes are subject to different sizing. Firstly, road bikes usually come in metric, centimetre measurements, whereas mountain bikes are generally measured in inches. Just to add to the confusion, some manufacturers do away with the measurements and rely on a small, medium and large size guide.

WHAT DO I MEASURE?

In order to size a bike correctly you should consider your height and inside leg measurement along with your riding style and the style of the bike itself. Measuring your height is best done by standing upright against a wall with your legs together (shoes off) and shoulders back. Place a pencil on top of your head, holding it parallel to the floor and mark the wall. You can now measure your height easily against the wall. Your inside leg measurement is taken from the floor (again, no shoes) to your crotch.

IT'S ABOUT CLEARANCE NOT CONTACT!

The distance between you, specifically your crotch and your bike's top tube (aka crossbar), is known as clearance. Clearance is indicated by standing over the bike, forward of the saddle and measuring the distance from your crotch to the top tube. It is important to be able to stand safely over the bike when stationary. Therefore, a clearance of at least two inches should exist on all the bikes you ride. It can be thought of as a safety net to prevent injuring yourself if you need to jump forward off the saddle suddenly.

WHAT ARE ROAD BIKES?

This is what you see in the Tour de France and other cycle races. Thin, fast rolling tyres are fitted to stiff frames which also feature 'drop' handlebars. Although you can use a road bike on cycle paths, you might find it a bit uncomfortable. Accurate road bike fitting is crucial as getting it wrong can lead to a very awkward ride

WHAT ARE COMMUTER / HYBRID BIKES?

Mid-point between a road and mountain bike. Hybrids will have the frame of a mountain bike, but often the wheels of a road bike to allow them to roll faster and smoother. You will sacrifice some comfort from the thinner tyres, but the mountain bike frame, bars and position will be more comfortable than a road bike.

WHAT ARE MOUNTAIN BIKES?

These are designed for off road use, so they will generally have fatter tyres to absorb the rough terrain and usually be fitted with at least a front suspension fork. The downside of fatter tyres is increased rolling resistance, so a mountain bike won't get you where you are going as fast on the road as a hybrid.


** Please note that all sizing information is provided as a guide and the products can vary for different models/type of product. For the most accurate sizing information, you can either call us on 01792 799508, email us or chat with us on Live Help and we'll be happy to help. Any bike ordered at the incorrect size will be subject to a £35 collection fee.