Old 07-31-20, 06:34 PM
  #4  
Darth Lefty 
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There seem to be a lot of midgrade tandems with crank arms that are/were not available aftermarket. I think they must buy them by the batch from the crank manufacturers. But that wouldn't explain DA.

Many MTB tandems right now are coming with 1x systems that allow the use of a single regular crank in front and a double crank in the rear with one serving as the timing ring, and Boost rear spacing is about the same as tandem spacing, so there's no upcharge for tandem compatibility. It's still not ideal for a road tandem, you always want a wider gear range and narrower q-factor than a MTB
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