Bike Forums - View Single Post - Boma F-1 Build & Help.

02-26-14 | 05:41 PM

#4

dynaryder

DancesWithSUVs

Joined: Apr 2005

Posts: 7,454

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From: Wash DC

Quote:

Originally Posted by mconlonx

but I am not familiar with Boma and 130/135 convertible(?) rear

Quote:

Originally Posted by ziqpy

I'm using a tape measure but getting aroudn 132mm on rear.

Probably 132.5mm:
http://forums.roadbikereview.com/cyc...ng-265455.html

Allows 130 road or 135 MTB. Either will work,but you'll find 135 is more common so you'll have more choices.

For gearing,plug the numbers for your old bike into Sheldon's calculator,then compare to your new build. 39/26 with 20" wheels is fairly low,so you prolly won't have issues. You could always go with an 11-28 cassette if you need to get lower.

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Last edited by dynaryder; 02-27-14 at 06:39 PM.

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