removing truvativ cranks

frankspencer1979
frankspencer1979 Posts: 525
edited September 2012 in MTB workshop & tech
I've got a big 8mm allen key, but no matter how hard i try i can't gt the bolt to budge. Anyone any tips!?

Comments

  • nicklouse
    nicklouse Posts: 50,675
    which cranks? they have made quite a few over the years.

    most likely more force needed. but model and year would help?

    or model and fitting.

    or just a clear photo.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • frankspencer1979
    frankspencer1979 Posts: 525
    Don't worry, i tried harder and it shifted!

    I've just fitted a hope bb (with gxp conversion.) It all went together ok but the cranks don't seem to spin quite as freely as i imagine they should, like there's very slight resistance.
  • nicklouse
    nicklouse Posts: 50,675
    there often is due to:

    1 bigger diameter seals.
    2 the BB not having been faced.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • The Rookie
    The Rookie Posts: 27,812
    3 overdoing the preload
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • frankspencer1979
    frankspencer1979 Posts: 525
    Fom what I understand, the GXP aspect of it does away with the need to preload? Watching the Hope how-to vid, he just tightens everything right up as the conversion spacers take the extra pressure, although I could be missing something
  • nicklouse
    nicklouse Posts: 50,675
    frankspencer1979 wrote:
    Fom what I understand, the GXP aspect of it does away with the need to preload? Watching the Hope how-to vid, he just tightens everything right up as the conversion spacers take the extra pressure, although I could be missing something
    correct there is no preload in the GXP set up.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown

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