Technical & Reference Section > Tech and Restoration

smallest chainring onto an old school spider

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HEYWOOD BMX:
MCS do a 34t/5 hole sprocket....

gary4130:

--- Quote from: HEYWOOD BMX on November 28, 2008, 03:18 PM ---MCS do a 34t/5 hole sprocket....

--- End quote ---
yeah thats the one i saw was going to go for a 35 or 36 t 'ring ,but didnt want to shell out £13 if doesnt fit ,but says bmx so might be ok

gary4130:

--- Quote from: Gary72 on November 28, 2008, 01:23 PM ---39 will fit on, but no lower as the arms are right next to the chain on a 39. run it with 14

--- End quote ---
cheers gary ,have already 39/14 but wanted to go smaller if poss ,35/13 or 36/13 i think might be the lowest that will fit

gary4130:
got a 34t 110 bcd off the bay and fits on the spider no probs and the chain clearance is ok,thanks to all for your help . :daumenhoch:
the grearing at the mo is 34/13 which is about equal to 42/16 so its not too bad,just need to find a 35 or 36 now.

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