• Anyway, have grx 600 1x in 172.5mm, but could do with 170mm

    Given grx is hard to find, besides keeping an eye out on eBay, what other options would work with the chainring / pushfit BB combo?

  • Keep riding what you have, nobody will notice a 2.5mm in crank length

  • why are you bothering getting new cranks. Why do you NEED new cranks? You wont notice 2.5mm.

    Ive rode 170 and 175 cranks on the same bike and noticed no diff.

  • I'd advocate for this change, mostly cos I'm a roadie really and ruts terrify me

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