Forum home Mountain biking forum MTB workshop & tech

Drive side BB cup reverse threaded?

felix.londonfelix.london Posts: 4,067
edited March 2012 in MTB workshop & tech
Just double checking (before I get busy with a mallet!) that the drive-side bottom bracket cup of my '06 Rockhopper should be reverse threaded.

Thanks
"Why have that extra tooth if you're not using it?" - Brian Lopes

Votec V.SX Enduro 'Alpine Thug' 2012/2013 build

Trek Session 8

Posts

  • The RookieThe Rookie Posts: 27,802
    Yes, they all are, although Ironically I have just removed the BB from a 2005/6 'hopper!

    Simon
    Current steed - Whyte T129, 2013 frame, mongrel Revelations, Giant dropper, Stans S1 wheelset. 12, Magura Trail Sport brakes, 1x11. 12.8Kg
  • felix.londonfelix.london Posts: 4,067
    Yes, they all are, although Ironically I have just removed the BB from a 2005/6 'hopper!

    Simon

    Ha! Wish I lived closer to you, you'd probably be able to help! The thing wont budge. The splined BB tool doesn't sit in too deep so as soon as I put some pressure on it it jumps out (damaging the splines in process)
    "Why have that extra tooth if you're not using it?" - Brian Lopes

    Votec V.SX Enduro 'Alpine Thug' 2012/2013 build

    Trek Session 8
  • DodgeTDodgeT Posts: 2,255
    Have you tried shocking it with a hide mallet or similar?

    Doh - just re-read your first post..
  • benpinnickbenpinnick Posts: 4,148
    The way to remember is: Left is right, and right is wrong... specifically the left cup (as you are sat on it)/non-drive is normal thread, while the right is wrong way round.
    A Flock of Birds
    + some other bikes.
  • felix.londonfelix.london Posts: 4,067
    benpinnick wrote:
    The way to remember is: Left is right, and right is wrong... specifically the left cup (as you are sat on it)/non-drive is normal thread, while the right is wrong way round.

    Yeah - so opposite to pedals where right is right and left is wrong :?

    Anyway f.ing thing wont budge and knackering the splines with each failed attempt. Will take it down to the bike shop and resist asking him to install the new BB. BB shell needs to be faced anyway.
    "Why have that extra tooth if you're not using it?" - Brian Lopes

    Votec V.SX Enduro 'Alpine Thug' 2012/2013 build

    Trek Session 8
  • mrmonkfingermrmonkfinger Posts: 1,452
    An impact driver is pretty useful here, but only if it is an internal BB.
  • cooldadcooldad Posts: 32,599
    benpinnick wrote:
    The way to remember is: Left is right, and right is wrong... specifically the left cup (as you are sat on it)/non-drive is normal thread, while the right is wrong way round.
    HT11's with little arrows are much easier for those of us with rubbish memories.
    I don't do smileys.

    There is no secret ingredient - Kung Fu Panda

    London Calling on Facebook

    Parktools
  • benpinnickbenpinnick Posts: 4,148
    benpinnick wrote:
    The way to remember is: Left is right, and right is wrong... specifically the left cup (as you are sat on it)/non-drive is normal thread, while the right is wrong way round.

    Yeah - so opposite to pedals where right is right and left is wrong :?

    Anyway f.ing thing wont budge and knackering the splines with each failed attempt. Will take it down to the bike shop and resist asking him to install the new BB. BB shell needs to be faced anyway.

    For pedals its backpedal on, pedal off.
    A Flock of Birds
    + some other bikes.
  • felix.londonfelix.london Posts: 4,067
    An impact driver is pretty useful here, but only if it is an internal BB.

    It is an internal BB but I haven't seen my impact driver for about 10 years!

    The Park Tools suggestion of putting a bolt through the BB tool to fix it to the BB sound like a good one. But the only bolts I've got to fit the thread are too long or too short :evil:
    "Why have that extra tooth if you're not using it?" - Brian Lopes

    Votec V.SX Enduro 'Alpine Thug' 2012/2013 build

    Trek Session 8
  • benpinnickbenpinnick Posts: 4,148
    You can zip tie it on too. Actually works!
    A Flock of Birds
    + some other bikes.
  • felix.londonfelix.london Posts: 4,067
    8x20mm bolt through back of BB tool and tightened into spindle. Two smacks with a mallet. Sorted. Happy days :D
    "Why have that extra tooth if you're not using it?" - Brian Lopes

    Votec V.SX Enduro 'Alpine Thug' 2012/2013 build

    Trek Session 8
Sign In or Register to comment.