Get started

  Find a bike's geometry by name

  Compare different bikes and sizes side-by-side

  Search for bikes by geometry numbers

Welcome to the world's biggest open database of bike geometry.

If your bike isn't listed yet, you can add it!

New: Advanced Search

You can now search by numbers - enter your geometry criteria and see the bikes that match!

This is a paid feature, but it's not expensive and supports the site.

Comparison examples

Check out what the site can do with...

Target: all the bikes

There are 28511 geometries in the database.

That's 6495 bikes, from 661 brands, and growing daily.

  Add a bike

Bike Fitters

We also have the world's largest database of fitters!

Find a local bike fitter and get professional help.

  Find your local fitter

  Lists by country and state


Talk to us

Give us feedback - drop us an email at hello@geometrygeeks.bike

Manufacturers & distributors

Join the likes of Cannondale, Niner, Boardman, Sensa, Ghost, Singular, Enigma and Mason and list all your models. Just ask - we can bulk upload.

Like this project? Subscribe for occasional emails about new things. No Spam. Promise.