Crank Arm Length?

donnie murdo
donnie murdo Posts: 986
edited October 2007 in MTB workshop & tech
What is the norm? 170mm or 175mm

And do they really make a difference?

Thanks! :)

Comments

  • nicklouse
    nicklouse Posts: 50,673
    what ever i use 165 and 170 and 175.

    more info needed.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • donnie murdo
    donnie murdo Posts: 986
    Whats the standard most common length? ie: what do most production bikes come fitted as standard with?
  • nicklouse
    nicklouse Posts: 50,673
    170 or 175 it depends.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • donnie murdo
    donnie murdo Posts: 986
    I see mmmm??

    I am 5'8" and want to fit new cranks to a 17" Merlin Malt4 I have an inside leg of around 30" but a long back.

    Any ideas?
  • nicklouse
    nicklouse Posts: 50,673
    i would go 175. what was on before and did you have any probs.

    i am about the same and run 175 on my XC bike.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • donnie murdo
    donnie murdo Posts: 986
    I think it's 175mm

    I guess that will do then...off to wiggle now!

    Cheers,

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