Advertise on Bikeforums.net



User Tag List

Results 1 to 2 of 2
  1. #1
    Junior Member
    Join Date
    Jun 2007
    Location
    Tampa Bay
    My Bikes
    Orbea Onix
    Posts
    21
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    How to check how much force is being applied?

    I noticed that a lot of parts and components have instructions limiting the force to be applied. Is there a meter that one can use? How do you make sure you are not exceeding the limits?

  2. #2
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    Location
    St Peters, Missouri
    My Bikes
    Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
    Posts
    23,104
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Torque wrench.

    I've got a couple of them: I use one with 3/8 drive for cranks and bottom brackets which I'd probably undertorque if left to my own judgement. I use one with 1/4 drive for high dollar stems and carbon fiber parts which I'd probably overtorque or not tighten evenly if left to my own devices.

    Other than that, I pretty much just guess: Little bolt - just snug it down. Big bolt - crank that puppy.

    If you don't have a torque wrench, here's a way to educate your guess that works on big bolts. The torque spec for crank bolts is usually around 30 lb/ft. Imagine a 30 pound weight hanging on the end of a foot long wrench handle. Tighten it that much.

Posting Permissions

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