Crank Removal Question.

[mtb1611]

Greetings. Need to remove a pair of Truvativ Descendant cranks off my stumpy, to grease the BB. I need a particular pinned tool to remove the cap over the 8mm hex bolt, as seen in pic. Any idea what this tool is called? Thanks!

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[moorey]

Should just be self extracting. Cap is for crank bolt to push against.

 

[moorey]

Start unscrewing that 8mm. It should get tight, then loosen off as crank comes off

 

[mtb1611]

Should just be self extracting. Cap is for crank bolt to push against.

That's what I'd anticipated, but it ain't budging so I'm assuming the cap may needto be removed separately.

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[mtb1611]

Start unscrewing that 8mm. It should get tight, then loosen off as crank comes off

The bloody thing won't budge! I'm worried about putting too much pressure/force on it.

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[moorey]

That's what I'd anticipated, but it ain't budging so I'm assuming the cap may needto be removed separately.

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Give it another crack. Doing it the right direction?

 

[slowmick]

you'll be surprised by how much force it takes to budge the bolt and the "crack" sound it makes when it lets go...

 

[MarioM]

Check this . Starts with non drive side first . Mate has it on his S works and he couldn`t figure out either . Use long pipe as can be set real tight .

sram dub crank removal - Google Search

 

[slowmick]

The cap should be pretty loose if you stick a pin in it you should be able to unscrew it.

Edit. (Once the bolt has gone crack - you can lube up the cap and put it back as the bolt pushes on it to self extract).

 

[mtb1611]

Give it another crack. Doing it the right direction?

The opposite direction to that indicated by the arrow and torque, correct?

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[leitch]

Dub cranks are absolutely ridiculous. Get your 8mm in there, chuck a 24" 48" bar on the allen key and stand on it. You might need two people.

 

[Minlak]

I actually had to use an impact driver to get mine to move the other week - I could not get it to "Crack" (the sound they make when it finally lets go.

My (bike that shall not be mentioned) has praxis cranks that self extract and they were as tight as a nun's nasty to get off and on.

 

[pink poodle]

Hammer time

 

[Flow-Rider]

Adjustable Hanger Cup Pin Spanner

 

[leitch]

Video tutorial:

http://instagr.am/p/B7-scjdFa-S/

 

[mtb1611]

Thanks for the help all much appreciated, will have another got later. Cheers.

 

[Litenbror]

Thanks for the help all much appreciated, will have another got later. Cheers.

Make sure to post the resulting video in the fwits thread.

 

[Minlak]

Thanks for the help all much appreciated, will have another got later. Cheers.

After you have had a lay down / nap and recouped your strength?

 

[mtb1611]

After you have had a lay down / nap and recouped your strength?

More like giving the Tourettes a rest.

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[mtb1611]

Done! Dubstep (see @leitch's vid) did the trick!

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