Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    Senior Member
    Join Date
    May 2010
    Posts
    67
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    How to fit a correct size front chainwheel?

    Hi All,
    I still like to change a front crank set FC-M101. This a simple, square hole, 48/38/28 tooths, 170mm. I search a lot of time to change it. It is not possible to get the same.
    How can I know the if the size is OK what I think to buy. (See link)When I write "size" I mean the the horizontal distance from the bike, size of the bottom bracket. (I tried one but it was 5-6 more near to the bike what was to big and also the tooth wheel was not good) I think to buy this in the link in the ebay. Is there any document that shows the sizes (measurements) of the crank set and the bottom bracket?

    http://www.ebay.ch/itm/ws/eBayISAPI....:WNARL:CH:1123
    Thanks.
    losi
    Last edited by losi; 01-22-12 at 09:26 AM.

  2. #2
    Senior Member commo_soulja's Avatar
    Join Date
    Aug 2008
    Location
    C-Ville
    My Bikes
    are fun to ride
    Posts
    1,142
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Do you want to keep the same gearing of your original crankset/chainwheel? Same crank arm length? Square taper BBs and cranksets are older tech but not hard to find. Manufacturers like Shimano usually post parts specs on their website.
    Mythical Creatures Touched Me in my Bathing Suit Area.

  3. #3
    Senior Member
    Join Date
    May 2010
    Posts
    67
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi commo_soulja,
    Thanks. i have to change the old tooth wheel and I like to have the same 48/38/28. The
    bottom bracket not have change it is still good but I need the the chain wheel in the sme position. Can be that need to change also the bottom bracket. But I not find any
    advise on Shimano Internet site with what part can change what parts. Also not find any measurement of any part on their Internet site what make impossible to think about. For that I ask here experienced people what I can do to change this old and simple crank set.
    losi

  4. #4
    Senior Member
    Join Date
    Jun 2010
    Location
    Pearland, Texas
    My Bikes
    Cannondale, Trek, Raleigh, Santana
    Posts
    5,114
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    losi, I can't find the data you need to reply positively that the crankset you want to install will swap without any further changes. Going just by pictures I think that it will. If not your bike shop will have a bottom bracket to allow the new crankset's use.

    Brad

  5. #5
    Senior Member
    Join Date
    May 2010
    Posts
    67
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi Brad,
    Thanks a lot. Hope it will fit or fit with a new (other size) bottom bracket.
    You know I come from electronic. There have crossreference number what other number can change what.
    I miss it here. Even they not give the size.
    Will try buy it.
    losi

  6. #6
    Senior Member
    Join Date
    May 2010
    Posts
    67
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi All.
    This is a report
    Finally Changed the Front tooth chain wheel FC-M103 to FC-M311 original Shimano one.
    The front tooh chan wheel now about 1-2 mm to left but this is even better and could set it.
    Thanks for all.
    losi

  7. #7
    Senior Member
    Join Date
    Jun 2010
    Location
    Pearland, Texas
    My Bikes
    Cannondale, Trek, Raleigh, Santana
    Posts
    5,114
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    losi, Thanks for the feedback.

    Brad

Posting Permissions

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