Technical & Reference Section > Tech and Restoration

smallest chainring onto an old school spider

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gary4130:
does anybody know what the smallest size chainring that would fit onto a spider ? and does it need to be a particular size ,have seen a few on e-bay for road bikes, would these stiil fit?

Mattdub:
39 tooth was used on cruisers bitd  ;)

HEYWOOD BMX:
 :) Check that the bolt holes match up with the spider.Most BMX stuff is 110 BCD,road/MTB is often 104 BCD?

Gary72:
39 will fit on, but no lower as the arms are right next to the chain on a 39. run it with 14

bobafett:

--- Quote from: HEYWOOD BMX on November 28, 2008, 12:36 PM --- :) Check that the bolt holes match up with the spider.Most BMX stuff is 110 BCD,road/MTB is often 104 BCD?

--- End quote ---

And even then it depends what spider you've got - I know takagi / tioga spider's can't be used with the likes of a sugino ring (unless it's the slotted hole version of the spider) bloody mine field  >:(

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