• Ive been looking at that geo chart loads latley, It does look like the 58 would fot fine tbh.

    btw im also going off I ride a 55cm All city macho man with a lay back thomson and a 110mm stem. the 55 machoman has a 565 toptube...

  • It's best to make sure the saddle position fit perfectly, then worry about the rest.

    too far forward just put too much pressure on the handlebar, too far back can cause pain on your legs.

    If there's one bike where the saddle felt like it's in a perfect position, measure the horizontal distance from saddle nose to bottom bracket, and replicate that on the other bike.

    Then you can sort out the reach.

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