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2. Geometry Sites #4204 . Top

Both these websites allow you to compare the geometry of various bikes.

     Geometry comparison. Allows you to select two bikes, then lists the specs side by side. I compared a Surly LHT 2018 with Trek 520. I see trail is much higher on Surly than Trek. They also have 1985 Miyata 1000 LT in all sizes. Their size data for miyata came from

     Has a form where you enter some measurements, and it adjusts the diagram. So you can design your own frame.

  3. Bike Exchange Geometry Charts
     SaysStack and Reach immediately tell you if a bike will fit you. But then handling is determined by Head Tube, then they get into Fork,Rake and trail. Says Top tube effective is good way if Stack and Reach aren't given. Finally Chainstay and wheelbase, and BBDrop.