Is my crank goosed?

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Kiliscott
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Is my crank goosed?

Postby Kiliscott » Sat Dec 14, 2013 21:08 pm

Hello there, I assumed a noise on my crank was from the crank but I wasn't 100% sure so I took it in my LBS for further investigation. He said my bottom bracket was about gone and my pedals were knackered, I knew about my pedals were anyway. It needed a service after a rough few months riding so I booked it in for a full strip down and new bottom bracket. A week later I collected it and got back, fitted my new v8s and hey, noise is still there. When I hold my crank arms there's a lot of movement and the noise only creaks when I put pressure down on the left pedal! here's a video I recorded earlier....... http://m.youtube.com/watch?v=wZvtTqT7CFI Regards scott.

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supersonic
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Re: Is my crank goosed?

Postby supersonic » Sat Dec 14, 2013 21:28 pm

What bike, cranks and bottom bracket?

Kiliscott
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Re: Is my crank goosed?

Postby Kiliscott » Sat Dec 14, 2013 21:39 pm

Sorry knew I should have added. Carbon 456, shimano Bb, truvativ crank, previous bb was hope.

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supersonic
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Re: Is my crank goosed?

Postby supersonic » Sat Dec 14, 2013 21:45 pm

Not enough info I am afraid - need model numbers of crank and bb.

Kiliscott
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Re: Is my crank goosed?

Postby Kiliscott » Sat Dec 14, 2013 22:03 pm

All I know is the bb is a hollow tech 2 and the crank truvatic gxp. Can I help you with photos or is there a number somewhere on crank?

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JBA
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Re: Is my crank goosed?

Postby JBA » Sat Dec 14, 2013 22:59 pm

GXP and Hollowtech II are not compatible as far as I know?
Different non-drive side spindle diameters: GXP tapers from 24mm to 22mm whereas HTII is 24mm.
Your left crank therefore won't tighten properly onto the bb spindle.
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Kiliscott
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Re: Is my crank goosed?

Postby Kiliscott » Sun Dec 15, 2013 10:15 am

A little bit researching from the above comment shows my truvativ noir xc 3.3 gxp is not compatible with the hollowtech 2 or the hope BB hence the noise before hand and now. I see the NDS is a different size, hence the looseness and horrible noise. Let's just hope I haven't damaged any of the crank. I'll get a gxp bottom bracket and try that.

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cooldad
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Re: Is my crank goosed?

Postby cooldad » Sun Dec 15, 2013 11:16 am

Kiliscott wrote:A little bit researching from the above comment shows my truvativ noir xc 3.3 gxp is not compatible with the hollowtech 2 or the hope BB hence the noise before hand and now. I see the NDS is a different size, hence the looseness and horrible noise. Let's just hope I haven't damaged any of the crank. I'll get a gxp bottom bracket and try that.


Kiliscott wrote:... I took it in my LBS for further investigation. He said my bottom bracket was about gone......I booked it in for a full strip down and new bottom bracket. A week later I collected it and got back, fitted my new v8s and hey, noise is still there.


And a new LBS while you're at it. What a numpty. Or just DIY.
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thecycleclinic
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Re: Is my crank goosed?

Postby thecycleclinic » Sun Dec 15, 2013 15:32 pm

That is a shocking mistake. I think Hope do adapters for the Truative cranks. You are best though with a GXP BB.
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bazza333
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Re: Is my crank goosed?

Postby bazza333 » Sun Dec 15, 2013 21:24 pm

Hope adapters are £8.25 from CRC, probably cheaper elsewhere.
I've used them successfully as the last thing I wanted was another GXP BB.


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