Joined: Oct 2008
Posts: 4,423
Likes: 4
From: wessex
Bikes: breezer venturi - red novo bosberg - red, pedal force cg1 - red, neuvation f-100 - da, devinci phantom - xt, miele piste - miche/campy, bianchi reparto corse sbx, concorde squadra tsx - da, miele team issue sl - ultegra
smallest that will fit on a 130mm bolt circle is a 38T if you can find one. maybe it's time to go to a wider range cassete with a midcage rear derrailleur?