Wheel bearings

zeroseven
zeroseven Posts: 347
edited July 2007 in MTB general
I've an 06 Stumpjumper. Mrs has an 03 Extralite F2.

Turn them belly up and spin the wheels and hers spins and spins forever. Mine grinds to a halt after 20 secs. Axles are fine and both bikes just been serviced. Do bearings really make that much difference (I've heard hers are ceramic?)

If so can anyone recommend some top notch bearings for ther stumpy, they cant be hard to press out / in

Comments

  • nicklouse
    nicklouse Posts: 50,675
    what hubs?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • zeroseven
    zeroseven Posts: 347
    Specialized FH M525 rear - specialized STOUT front ??
  • supersonic
    supersonic Posts: 82,708
    Thick grease and tight seals can slow the hub down, as of course can incorrectly adjusted bearings. Spinning forever is not actually that good a thing, as the bearings may not be correctly preloaded - when weight is applied it may wear them even quicker.
  • Platano
    Platano Posts: 77
    Are your brakes rubbing?
  • zeroseven
    zeroseven Posts: 347
    Platano wrote:
    Are your brakes rubbing?

    Nope.
  • Rockhopper
    Rockhopper Posts: 503
    If a feeling that both of those hubs have cup and cone type bearings, not the press in cartridge type like Hope hubs.
  • zeroseven
    zeroseven Posts: 347
    Is that bad?
  • supersonic
    supersonic Posts: 82,708
    What are her exact hubs? As above, the type can make a difference, as can adjustment.
  • zeroseven
    zeroseven Posts: 347
    They just say HOPE. Cant see anything else
  • supersonic
    supersonic Posts: 82,708
    The bearing should have the number written on the side of it, then its just a case of ordering another set from a supplier. They can be drifted out with sockets and a mallet, some good guides on the web.
  • nicklouse
    nicklouse Posts: 50,675
    his
    zeroseven wrote:
    Specialized FH M525 rear - specialized STOUT front ??

    and hers
    zeroseven wrote:
    They just say HOPE. Cant see anything else

    his deore and cheap specialised's own.

    hers one hub costs more than twice both of his hubs.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • zeroseven
    zeroseven Posts: 347
    edited July 2007
    supersonic wrote:
    The bearing should have the number written on the side of it, then its just a case of ordering another set from a supplier. They can be drifted out with sockets and a mallet, some good guides on the web.

    Yeah ta I know how to change bearings..... On Hondas anyway....
  • zeroseven
    zeroseven Posts: 347
    nicklouse wrote:
    his
    zeroseven wrote:
    Specialized FH M525 rear - specialized STOUT front ??

    and hers
    zeroseven wrote:
    They just say HOPE. Cant see anything else

    his deore and cheap specialised's own.

    hers one hub costs more than twice both of his hubs.

    Is that right? The Extralite is an unbelievable bit of kit, it doesn't surprise me......

    So if I buy new bearings what should I get?
  • nicklouse
    nicklouse Posts: 50,675
    for yours? new wheels.

    sorry. not much you can do on the back just new balls and cones.

    front sorry never really looked at them except for the 9mm Qr i just swap the wheels out when worn.

    if you want to find out about the rear parktools in the sig. cone and cup bearings.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • zeroseven
    zeroseven Posts: 347
    Cool - thanks all.....