If it is just the frame this will be the center point in the bottom bracket shell.
Mens bike sizes.
If you don t have the bike in front of you the most important measurement to know is your inseam.
Don t forget that bike sizes can vary from brand to brand too.
First consider what kind of bike you want sizing varies greatly between road and mountain bikes as well as between men s and women s models and even between.
There s a good reason bike fit is the most important consideration when purchasing a bicycle.
To measure your bike s frame size take a measuring tape and place the tape in the center bolt of your bike s cranks.
I hope this helps.
Bike frame sizes are measured in the same way for all styles of bicycle.
Ask an expert cycling gear mountain biking.
This bike size guide gives our customers general advice on choosing the right size.
08 july 2011.
The inseam is the length from your crotch down to your foot.
A correct fitting bike will be more comfortable more efficient and more fun to ride.
With a properly sized bike you re more likely to enjoy a comfortable ride easy handling efficient energy transfer and thus quicker riding times.
For a road bike you are good with frame sizes 51 52 53 cm which are all under the small category.
Bike sizing differs from bike to bike and the things you re looking for will vary depending on which type you re considering so make sure to choose the guide most relevant to you.
If you fall across two sizes or have questions about the bikes size that will best suit you see the expert fit technicians at your local retailer.
Instead of having for example four men s sizes and four women s sizes in a model a bike model can come in five sizes.
If your measurements fall between two sizes on the chart above there s no need to.
For a mountain bike you are good with frame sizes.
Consider the bike type.
That offers a greater fit range for all riders and smaller incremental changes between sizes provides a more precise fit for any single rider.
One brand s 18 isn t necessarily the same as another brand s.