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Old 04-10-13, 02:29 PM
  #88  
DubT
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Join Date: Sep 2009
Location: Central Illinois
Posts: 1,180

Bikes: Trek Speed Concept 9.9, 2011 Calfee Tetra Tandem

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Originally Posted by jnbrown
Is there a CDX system that fits the original 71 tooth chain rings?
I believe that is what fits our Calfee.
I don't see anybody selling Tandem CDX parts online, where do you buy them?
If the center to center distance between your bottom brackets is 28.5 inches you will be able to use the new 69 tooth rings and the 250 tooth belt. The kit is available directly from Gates and I believe most of the tandem speciality shops such as Tanems East, House of Tandems, Precision Tandems etc. I bought ours directly from Gates and have had it installed since early October of 2012, it has around 2,500 miles on it with no problems, no wear that I can see, quiet and clean.

Wayne
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