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Crank length on 56cm Cannondale Synapse (carbon ultegra mechanical)


I want to buy the above bike but cannot find crank length it comes with anywhere.

Can anyone advise please who has one?


  • Hi not sure on the crank length. However you can just change the arms on a Cannondale chainset. I did that with my last Cannondale. I bought a set of 172.5 arms swapped them over and sold the 175 arms on EBay. Net cost difference wasn’t much. You will need a crank arm extractor tool though it’s a specialist Cannondale tool. Worth having though as you may need it again.
  • I have this bike, they're 172.5
  • feistyfeisty Posts: 161
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