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BikeTwins
How it works

Which bikes are you looking at?

Pick the makes and models you would actually buy. I size every one of them to your position.

Catalogue
210 bikes · 43 makes · 1,262 sizes
Your position
none yet · Start with the bike you ride
Sheet
6 September 2026 · nothing picked yet

Make or model, either way round: "trek" gives you every Trek, "domane" the Domanes whoever makes them. You never pick a size here; I tell you which of its sizes is yours.

Nothing is listed until you ask for it: search, press Road or Gravel for every bike of that kind, or press a letter for the makes that start with it.

Road is every road bike; Gravel is gravel and all-road. The 2 time trial bikes are QuickPro: search for them, or press Q below.

L · 2 bikes

1 make beginning with L: LightCarbon. Press a make for its bikes alone.

LightCarbon

2 bikes
Road 6sizes
Endurance road 6sizes

First, the bike that fits you now

Choose the bike you ride, then its size, and the two parts I cannot see from here. Nothing is stored on my side; your position and your picks ride in the address bar, the same way a shared comparison does.

Leave those three blank if you do not know them. I will stand in 100 mm, -6 and 10 mm, say so on every answer, and your bar band goes from ±13 mm to ±3 mm until you measure them.

Or start from your own numbers

Two minutes with the bike you ride now, or twenty with a tape. Either way the numbers are yours and nothing about your bike is assumed afterwards.