Advertise on Bikeforums.net



User Tag List

Results 1 to 4 of 4
  1. #1
    Member
    Join Date
    May 2009
    Location
    Delaware
    My Bikes
    Trek 7100
    Posts
    30
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    How to Identify needed tools

    Here is one for all you ace bicycle mechanics out there! I need to pull the cranks and bottom bracket off my Trek 7100 so I can lube it (possibly replace bearings) and I am thinking I might try changing out the cranks as well. There are a lot of places on the net to find very good tutorials on how to do it, but how do I know which specialty tools I need to get first? This is what I know from Trek's site about the cranks: Shimano M151 48/38/28 w/chainguard.

    I have had it up on the stand, and while I have worked on cars and motorcycles, I'm not sure what I need to look for, or what the part (Shimano M151) actually tells me beyond the obvious. Any thoughts, or direction to the proper resources is greatly appreciated!!

  2. #2
    Senior Member jeremyb's Avatar
    Join Date
    Sep 2003
    Location
    Sacramento CA
    My Bikes
    Raleigh Grand Prix, Cervelo P3alu
    Posts
    534
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Park Tools .com is a good source

  3. #3
    Senior Member
    Join Date
    Sep 2001
    Location
    Montreal
    My Bikes
    Peugeot Hybrid, Minelli Hybrid
    Posts
    6,521
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You will need a crank puller for square tapered type crank. If it has a cartridge bottom bracket you will need a BB extractor to replace it, but the bearings are not accessable for maintenance.

  4. #4
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,298
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by AndrewP View Post
    You will need a crank puller for square tapered type crank. If it has a cartridge bottom bracket you will need a BB extractor to replace it, but the bearings are not accessable for maintenance.
    This is correct.

    The crank is square taper - it'll either use a 15/14mm recessed nut or a 8mm hex to remove whatever is securing the crank on. You'll then need a square taper type crank puller. Park CCP-22



    Trek doesn't even list the type of bottom bracket it has - you'll need to know this in order to select the correct tool for removing this from your frame. You can take a picture once the cranks are off and we can determine the correct tool for you.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

Posting Permissions

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