Hopefully a simple headset/stem question...

Paul 8v
Paul 8v Posts: 5,458
edited May 2013 in Workshop
Going to try flipping the stem over on my new bike, I'm just a bit worried about getting the right tension in the headset once it is done. I don't want to do it too tight/loose. Does it need to be an exact torque setting on this? Don't want to mess it up!

Also the seat post kept slipping (I did it myself as I removed the seat pin to get it in the car) I'm worried I may have done it too tight, would it be immediately obvious if I had messed it up?

Comments

  • onbike 1939
    onbike 1939 Posts: 708
    You should have no problem if after ensuring the the pinch bolts are loose, you tighten up the pre-load gradually, and after each adjustment and again tightening up the pinch bolts, you check that the bars turn freely and that with the front brakes applied, there is no movement in the head-set (if you have front suspension this will allow movement when doing this). After you reach this condition and finally tighten the pinch-bolts the pre-load setting may be eased off a little.
    Assuming that you have lubed the seat post with copper slip or grease, then I wouldn't worry that it is too tight. Not tight enough is usually the problem.
  • Paul 8v
    Paul 8v Posts: 5,458
    Thanks onbike, that makes a bit more sense, I thought the bearings might have had to be to a certain torque setting but it seems like it is more by feel from what you're saying.

    Many thanks

    Paul
  • nicklouse
    nicklouse Posts: 50,673
    no settings just preloading to remove play.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • mitchgixer6
    mitchgixer6 Posts: 729
    Keep the stem bolts loose and gradually tighten the bolt on the top of the headset cap. Keep checking the play in the headset by applying the front brake and rocking the bike back and forward. You'll feel it if there's play there. Keep tightening and checking until the play goes away then nip it an extra 1/4 turn. Then tighten the stem bolts, job done. Keep an eye on it though as it may need re tightening after a few miles.