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Old 06-18-2013, 09:25 AM
  #2888  
Kevin Marcy
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Join Date: Jul 2009
Posts: 281
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I've got a 70T spur on mine (#3RAC-SG4870) with a 39T pinion, which gives a 3.59FDR (19T center pulleys). Looks like a 40T pinion might fit.
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