what is the average amount of pre load supposed to be on the front and rear wheels?? mountain bike. i know that if you leave just enough to barely feel movement in the wheel, then tighten wheel, seems like i'm constantly having to re adjust. if i put any load on it just past the no play area, it feels kinda ruff...but when i squeeze both ends manually like i'm installing it, it gets smooth...is the rufness correct before preload after tightening wheel?

  • 1
    Are you talking about adjusting cones on your hubs, or your quick-release skewer, or what? Mar 18 '15 at 20:27
  • they are quick release, but no i'm talking about the cones.
    – user18765
    Mar 18 '15 at 20:55
  • As always - Sheldon Brown has the answer. sheldonbrown.com/cone-adjustment.html
    – mattnz
    Mar 18 '15 at 22:13

Bearing adjustment is part science and part art. It is based on a sense of feel from trial and error. It should feel smooth when spun, with the least amount of play. If it feels rough it is too tight or dirty. I had the most difficulty with tightening the jam nut after I made the adjustment. It seemed that the cone always got too tight while I was locking everything in place. You may find it easier to have a helper hold a wrench on one side while you hold the other cone and tighten the jam nut.

  • 1
    Yeah, the hard part is that tightening the lock nut causes the adjustment to change, so it must initially be set to compensate for that. Mar 18 '15 at 23:59

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.