totalshell Posted November 7, 2011 Report Share Posted November 7, 2011 i have a 32a villiers lump with a 4spd trials box. what is the common thought on rear sprocket size? Quote Link to comment Share on other sites More sharing options...
toyboy2 Posted November 8, 2011 Report Share Posted November 8, 2011 i have a 32a villiers lump with a 4spd trials box. what is the common thought on rear sprocket size? How fast do you want to go and how good do you ride a trials bike? Quote Link to comment Share on other sites More sharing options...
old trials fanatic Posted November 8, 2011 Report Share Posted November 8, 2011 i have a 32a villiers lump with a 4spd trials box. what is the common thought on rear sprocket size? Also depends on gearbox sprocket and chain size? I run 12 / 60 on a 428 chain. Works for me but if you dont like using the clutch try a 12 / 62. Quote Link to comment Share on other sites More sharing options...
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