Results 1 to 8 of 8
  1. #1
    Pinball Wizard
    Reputation:
    Join Date
    Jan 2004
    Posts
    136

    180mm cranks for me?

    Hi,

    I've always used 175mm cranks on all my previous bikes and my previous singlespeed. Anyway, I don't necessarily feel the need for 180mm crank arms, but am curious as to the actual/percieved benefit. I am 5'10" tall, but don't have particularly long legs. So, I h=guess any input would be greatly appreciated.

    Thanks,

    Colin
    death is a star.

  2. #2
    Nat
    Nat is online now
    Solo contendre
    Reputation: Nat's Avatar
    Join Date
    Dec 2003
    Posts
    10,652
    Quote Originally Posted by futonrvltnst
    Hi,

    I've always used 175mm cranks on all my previous bikes and my previous singlespeed. Anyway, I don't necessarily feel the need for 180mm crank arms, but am curious as to the actual/percieved benefit. I am 5'10" tall, but don't have particularly long legs. So, I h=guess any input would be greatly appreciated.

    Thanks,

    Colin
    Hmmmm, I'm 5'10", have short legs (29" inseam), and like the 180's.

    Setting up the mathematical proof here, from Algebra I...

    Let Nat = 5'10" + 29" = 180mm

    If Colin = 5'10"
    Then Colin = 180mm

    Yes, you would indeed like the 180's!

  3. #3
    mtbr member
    Reputation:
    Join Date
    Jun 2005
    Posts
    11

    You call that Math?

    What ever... You got a point. I rode 175 on everytihing for years. Got some 180. love em. I'm not sure how big a difference it is in fact, but they just FEEL really good. I'm gonna go ride em now.

    Bye Bye....
    pinky!!! what the hell are you doin'??!!!??!!!
    -waiter at outback steak house
    (i had pink hair at the time....)

  4. #4
    Recovering couch patato
    Reputation: Cloxxki's Avatar
    Join Date
    Jan 2004
    Posts
    14,005
    Miguel Martinez = Former Olympic Champion = 5'4"/5'5" ?
    175mm cranks exclusively.
    Remember how all shoudl be in proprotion. Do the math and see how big you could go without exceeding the relative crank length of an Olympic Champ. And he's a gearie, even...
    Klok - XC - Skate - Ski

  5. #5
    mtbr member
    Reputation: Sideways's Avatar
    Join Date
    Feb 2005
    Posts
    173
    It's all about femor length and it's not a linear relationship.
    -Marshall Hance
    EndlessBikeCo.

  6. #6
    mtbr member
    Reputation: SScheetz's Avatar
    Join Date
    Jun 2004
    Posts
    200
    I switched to 180s about a month ago. The extra leverage works great for me. I'll never use 175s on a SS again. If your riding style is mostly out of the saddle (like most SS's) I think you'll like them.

    I only have 2 minor complaints. Since I now pedal a larger diameter and my feet are big, my heel nicks the chain stay (sometimes). And I have lost 5mm of pedal to ground clearance.

  7. #7
    Retro Grouch
    Reputation: aka brad's Avatar
    Join Date
    Dec 2003
    Posts
    2,091

    I haven't decided yet...

    Quote Originally Posted by futonrvltnst
    Hi,

    I've always used 175mm cranks on all my previous bikes and my previous singlespeed. Anyway, I don't necessarily feel the need for 180mm crank arms, but am curious as to the actual/percieved benefit. I am 5'10" tall, but don't have particularly long legs. So, I h=guess any input would be greatly appreciated.

    Thanks,

    Colin
    A couple months ago I switched from 180's to 175's; I did not change my gearing (34;18/32:17). The result has been predictable. My seated grinds feel stronger but there are a couple of steep climbs I used to be able to do that I can't clear now. I'm also 5'10" with 32" inseam. Since I do race from time to time, I figure I'll time myself on a couple loops and switch back to 180's. Hopefully I'll have the results by the end of next month and my race at North Star.

    1G1G, Brad

  8. #8
    Pinball Wizard
    Reputation:
    Join Date
    Jan 2004
    Posts
    136
    Thanks for all the replies.

    I live in S. Florida, so there are no extended climbs, just short & steep climbs. But, I do have two sets of 175mm cranks here, so I am more inclined to run them since I woun't have to buy anything new.
    death is a star.

Similar Threads

  1. VP Free due in tomorrow!
    By PattD in forum Santa Cruz
    Replies: 35
    Last Post: 01-10-2005, 05:41 PM
  2. are my cranks worthy of the trash or my frame?
    By Jones in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 3
    Last Post: 11-24-2004, 07:04 AM
  3. XTR cranks on a SS
    By Winky in forum Singlespeed
    Replies: 1
    Last Post: 06-26-2004, 10:27 AM
  4. profile design carbon cranks?
    By jh_on_the_cape in forum Weight Weenies
    Replies: 3
    Last Post: 06-09-2004, 06:32 AM
  5. Difference between LX and XT cranks?
    By RC JonB in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 14
    Last Post: 04-25-2004, 03:51 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •