Advise needed on replacement crank length...-
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  1. #1
    mtbr member
    Join Date
    Dec 2006

    Advise needed on replacement crank length...

    I want to replace the my current crankset with a different setup. I have a raceface evolve 32T but it creaks no matter what I do. I like the Raceface Evolve SS set up but fear I'm going down the same road.?? Second question is I'm 5'8 with a 30 inch inseam and 175 pounds what would 170 mm crank arms do for me. Here in North GA we climb alot of the time and wonder if a shorter crank length would be better.......Thanks guys. Oh I just add the Stans ZTR 650b's and totally love them. I

  2. #2
    AZ is offline
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    Join Date
    Apr 2009
    IMHO for climbing longer crankarms give you an advantage .

  3. #3
    Mtbr Forum Sponsor - Homebrewed Components
    Join Date
    Jul 2006
    are you sure it's the crank? could be the frame or something else. A cracked frame sounds alot like a bottom bracket creak. But as far as cranks go, i really like the Shimano xt and xtr cranks with the external bearings. You can always go the white industries route, but they are a bit more expensive when you factor in a decent BB and all that jazz.
    Also, i'd still say longer is better of your climbing alot. more leverage can only help.

  4. #4
    mtbr member
    Join Date
    Jan 2004
    I'm 5'9" with a 30" inseam. I've ridden both 170mm and 175mm cranks on my SS. I just started a post about getting some new 175mm cranks...

    Anyway, I like to spin fast and the shorter cranks feel good doing that. If you have a lot of short steep climbs and you like to spin fast, then I'd say the 170mm are a good choice. If you have more long grinding climbs then 175mm is probably better. Hopefully that helps, and hopefully other will also give you their advice too.

  5. #5
    mtbr member
    Join Date
    Jun 2009
    Yup, if you're a spinner, shorter cranks are preferable. But you'll be "giving up" the 'slight' torque advantage of longer arms.

    I'd always used 175's on my 26ers & I'm 5'9.5" :-) with an ~33" inseam but when I converted to a 29er (& SS -- not for long!) last month I switched to 180's. Honestly, really can't tell if there's a difference but then I've been off bikes for ~3 years. So far though, I think I'll stick with them. Even though my preference is spinning as well. Gone as high 133rpm on-road so far but my normal (preferred) cadence is ~80-90rpm. FWIW.

    Good luck in your selection.

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