Removing a Truvativ Powerspline BB - Hollowtech now fitted

hairy_boy
hairy_boy Posts: 345
edited October 2010 in MTB workshop & tech
Hi,

will soon be removing the Truvativ Powerspline BB from my 2008 Giant Terrago, then getting my LBS to face the frame ahead of fitting my new Deore chainset when it arrives from Evans.

Just wanted to check about removing the Truvative cups and thread direction. My understanding is that the cup on the right hand drive side will be left hand threads so I turn clockwise to loosen and on the non-drive side the threads will be right hand threads so I turn anti-clockwise to loosen.

Is my understanding correct ? First time changing a BB so want to get it right and not knacker my frame !

Thanks in advance for your experience and knowledge.

Comments

  • supersonic
    supersonic Posts: 82,708
    Yes, that is correct.
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  • hairy_boy
    hairy_boy Posts: 345
    Thanks SS.
  • S_J_P
    S_J_P Posts: 908
    IIRC you'll need a powerspline BB tool and crank extractor too (unless you have the silver-ringed self-extracting type crank bolts)
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  • BorisSpencer
    BorisSpencer Posts: 786
    The crank extractor and BB socket that came in my Lidl tool kit were all I needed to change mine.
    Northwind wrote: It's like I covered it in superglue and rode it through ebay.
  • hairy_boy
    hairy_boy Posts: 345
    Yeah, my powerspline crank bolts are the self extracting kind and my Edinburgh Bike Co-op toolkit includes the tool which fits the bottom bracket cups so I think I am good to go.

    Just got hold of this tool for fitting the Deore Hollowtech 2 BB cups and crank preload cap: http://www.merlincycles.co.uk/bicycle-w ... tools.html
  • S_J_P
    S_J_P Posts: 908
    BorisSpencer wrote:
    The crank extractor and BB socket that came in my Lidl tool kit were all I needed to change mine.
    Funnily enough, that's exactly the (cheap) tool-kit I used! The BB tool was a little difficult to keep located in place whilst torquing-up, but it worked well enough and the whole kit was a similar price to an individual Park Tools BB tool 8)
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  • hairy_boy
    hairy_boy Posts: 345
    Ok, now fitted my Hollowtech chainset - everything went like a dream, didn't even need to adjust my front mech the new chain rings are in the exact same position as the old :D

    Quick question, do I just leave the black plastic cap (tensioner) in the left hand crank arm ?
  • nicklouse
    nicklouse Posts: 50,673
    yes.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • hairy_boy
    hairy_boy Posts: 345
    Cheers Nick
  • paul_284
    paul_284 Posts: 34
    I have a 32mm diameter 20 teeth Shimano type BB remover will this work to remove my truvativ powerspline bb its on a giant terrago sport 2006 i think. and do i hav eto take the axle out first because it wouldnt seem to fit over the end as i tried quickly this morning.

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