• I am wondering if it is a bit of a faff to go from 175mm to 172.5 mm cranks

    It's certainly more trouble than it's worth unless you are certain that 175 is too long for you.

  • Having switched between 172.5 and 165 cranks on different bikes for years without ever really noticing any discernible difference, I’d try the 175s first before making a decision to swap.

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