Bottom Bracket
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grant



Joined: 22 Jun 2008
Posts: 1233

PostPosted: Fri Oct 24, 2008 7:42 pm    Post subject: Bottom Bracket Reply with quote

Was cleaning my road bike today and noticed my bottom bracket seems a bit loose like the cranks have got a bit of movement , whats recommended bike shop fix or self fix or would a new bottom bracket be better . same again bike shop or self fix ???????

grant
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mr-marty-martin



Joined: 30 Jun 2008
Posts: 3778

PostPosted: Fri Oct 24, 2008 7:45 pm    Post subject: Reply with quote

probaly just needs tightened up, although you do need a specail bottom bracket tool for this.

if you realy havnt got a clue just go to the shop, but were allways hear to help Wink
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Gunner



Joined: 15 Apr 2007
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Location: Under Whitestone-Cliffe on the Lake.

PostPosted: Fri Oct 24, 2008 7:53 pm    Post subject: Reply with quote

As Marty said, probably just needs tightening although you do need a special spanner.

You can get away with improvising using a flat headed screwdriver and a hammer to gently tap the locking ring round and a bit of rag to help protect the ring tooth. Just depends how confident you are doing it. The spanners are quite pricey if it's something your going to be using infrequently.

Alternatively a bike shop might just nip it up for free if you ask them nicely Wink

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K88MUD



Joined: 20 Sep 2008
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Location: New Marske

PostPosted: Fri Oct 24, 2008 8:01 pm    Post subject: Reply with quote

What BB has it got ?
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grant



Joined: 22 Jun 2008
Posts: 1233

PostPosted: Fri Oct 24, 2008 8:11 pm    Post subject: Reply with quote

just the one that came with the bike Shimano Hollowtech II
dont know anything about it tho apart from it is has some movement and clicking
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K88MUD



Joined: 20 Sep 2008
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PostPosted: Fri Oct 24, 2008 8:18 pm    Post subject: Reply with quote

So you need one of these then ?


32d7_2.jpg
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Gunner



Joined: 15 Apr 2007
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Location: Under Whitestone-Cliffe on the Lake.

PostPosted: Fri Oct 24, 2008 8:22 pm    Post subject: Reply with quote

It should look more like this;

http://images.google.co.uk/imgres?imgurl=http://media.rei.com/media/71 0554_9996Lrg.jpg&imgrefurl=http://www.rei.com/product/710554&h=440&w=4 40&sz=14&hl=en&start=1&usg=__QBiaabb_JAQTCP9W6O1MHwtcAv8=&tbnid=J5Tvow uNO0n58M:&tbnh=127&tbnw=127&prev=/images%3Fq%3Dbottom%2Bbracket%2Bspan ner%26gbv%3D2%26hl%3Den%26safe%3Doff%26client%3Dfirefox-a%26rls%3Dorg. mozilla:en-GB:official%26sa%3DG


That looks more like a cassette removal tool, Richie Confused

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K88MUD



Joined: 20 Sep 2008
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PostPosted: Fri Oct 24, 2008 8:25 pm    Post subject: Reply with quote

Ok.......thats what i remove mine with.......not sure where that spanner fits Confused
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mr-marty-martin



Joined: 30 Jun 2008
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PostPosted: Fri Oct 24, 2008 8:25 pm    Post subject: Reply with quote

yeh gunners got the right tool there Wink
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Gunner



Joined: 15 Apr 2007
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PostPosted: Fri Oct 24, 2008 8:29 pm    Post subject: Reply with quote

K88MUD wrote:
Ok.......thats what i remove mine with.......not sure where that spanner fits Confused



I see, that's a bracket removal tool, looks very similiar to a cassette tool, usually the bottom bracket is secured by a lockring which the above spanner fits, in my experience the lockring or rather its looseness affects the play in the cranks in the first instance.

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K88MUD



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PostPosted: Fri Oct 24, 2008 8:41 pm    Post subject: Reply with quote

Ok....so mine must be a sealed unit then ??
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mr-marty-martin



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PostPosted: Fri Oct 24, 2008 8:43 pm    Post subject: Reply with quote

what bb you running k88
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K88MUD



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PostPosted: Fri Oct 24, 2008 8:44 pm    Post subject: Reply with quote

mr-marty-martin wrote:
what bb you running k88


TruVativ Cartridge Sealed

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mr-marty-martin



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PostPosted: Fri Oct 24, 2008 8:48 pm    Post subject: Reply with quote

oh a understand now, they look pritty strong
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K88MUD



Joined: 20 Sep 2008
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PostPosted: Fri Oct 24, 2008 8:57 pm    Post subject: Reply with quote

mr-marty-martin wrote:
oh a understand now, they look pritty strong


Seems to be lasting ok......just the pedals that let mine down. Crying or Very sad

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