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banjoboy · **Posts:** 255

Hello all...need some advice on taking off my hollow tech crank..gotta replace the middle ring..have taken out the hex key..do i need a crank extractor or am i missing something??..hope the pic works..many thanks..Z

NickTKS · **Posts:** 715 **Location:** W.Thurrock, ESSEX

Pic didn't work....
Now undo the clamp bolts on the left crank and give it a nudge with a rubber mallet to get it moving off this shaft.. Then once off, using the same mallet knock the crank shaft through and out the BB.

Simples

chatman · **Posts:** 2755 **Location:** Riding my bike somewhere

As Nick says above.. Mine needed a gentle tap with mallet and block of wood. Once out clean the threads up nice and good and re-grease it up

Don't over tighten the new one when replacing...

Eccles · **Posts:** 1166

Hollowtech I and II? If it's version 2 then follow the instructions given by Nick otherwise, yes, you'll need a Hollowtech I crank extraction tool (the bit that applies pressure to the BB axel is large than a normal crank extractor). I have one I think. Hollowetech II is a 2 piece system and Hollowtech I is a 3 piece system.

banjoboy · **Posts:** 255

Thanks lads..that took ages to short out pic..not sure if its a 1 or 2..can u tell from the pics..thanks..Z

Eccles · **Posts:** 1166

That looks like version 1 to me. The left crank arm would have clamp bolts on it if it was version 2.

tomibiza · **Posts:** 148 **Location:** harlow

It looks like it needs an extractor to me which is why it has the second set of threads in the drive side pedal arm....

shouldgetoutmore · **Posts:** 500 **Location:** Stanford-le-hope

Get some self extracting crank bolts. Hollowtech 1 should come with them.

phinw · **Posts:** 110 **Location:** Colchester

Yep, looks like a Octalink bb, you'll need a extractor. Make sure it is an ISIS/octalink compatible one, the ones that just do square taper don't work.

Laser · **Posts:** 2166 **Location:** The land were time forgot

I see image looks like my one.
I got both crank pulls as got the wrong one. Black & the Blue Banjoboy if you like to borrow just shout.

blue http://www.chainreactioncycles.com/Mode ... elID=34314
black http://www.chainreactioncycles.com/Mode ... delID=3614

banjoboy · **Posts:** 255

Thanks for advice lads..just ordered from crc..does the tool refit it also or is that a mallett jobbie?..ta..Z

phinw · **Posts:** 110 **Location:** Colchester

No, you don't need it to re-attach. You pop the arms back on the axle, lining up the splines, and do up the bolts you took out. About 40nm (I think) or 'bloody tight' (but not stupid tight) if you don't have a torque wrench.

Use grease or anti-seize on the bolt threads and the splines. From the pic it look like they have plenty of copper anti-seize on.

tomibiza · **Posts:** 148 **Location:** harlow

Just to be sure you ordered the black one right? cos the blue one wont do it!

banjoboy · **Posts:** 255

Thanks all...brought this 1..hope its ok..

http://www.chainreactioncycles.com/Mode ... elID=38068

phinw · **Posts:** 110 **Location:** Colchester

Yeah. That'll do!

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