Built for bike geeks

Welcome to the world's biggest open database of bike frame geometries. 5792 bikes and growing daily!

Easily compare different bikes and sizes side-by-side.

If your bike isn't listed yet, it's simple to add it.

NEW! Try our new automagic bike-adder.

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Comparison examples

Check out what the site can do with...

Target: all the bikes

There are 25494 geometries in the database.

That's 5792 bikes, from 606 brands.

  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.