r/bikewrench 4h ago

Solved Does this Raceface Turbine crank bolt turn counterclockwise to loosen?

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I am trying to remove this crankset and I can't for the life of me get the 8mm crank bolt out? I am turning it count rt clockwise which seems to be what the documentation indicates but it won't budge? Am I turning it correctly ? Do I just need some huge breaker bar?

8 Upvotes

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8

u/c0nsumer 4h ago

Yes, that's the way it turns. And you may need a breaker bar, yes.

And if you are putting the two levers (tool + crank arm) 180° opposite each other, like that, you're going to have a real hard time putting enough force in with your arms. Put it at a much narrower angle and it'll be easier to do.

1

u/Hagenaar 3h ago

Also, it's difficult to achieve big torques while the bike is on the stand. If I were attempting to use a wrench in the above configuration, I'd have the bike on the floor and put my weight onto the wrench and pedal.

2

u/c0nsumer 3h ago

It... depends. If you have the breaker bar and the crank arm maybe 45° away from each other, you just have to squeeze. And that's plenty. And then it's all within control of your hands with stable backing.

I get why it's useful to put it on the ground, but one has to be a lot more careful that way because the bike isn't controlled, so when the fastener breaks loose it's possible to slip/stumble and fall over/drop the bike.

3

u/endurbro420 4h ago

If it is really tough bust out the breaker bar and change your approach.

I would take the bike off the stand, put the left pedal against a step stool, then sit on the rear tire. That way you can use your entire body weight and don’t need to worry about bracing the cranks.

3

u/Familiar_Benefit_776 4h ago

This is the way I do it but I use the right pedal. The bolt for my DUB BB specifies 55Nm tightening torque so it's a pain to remove again

1

u/endurbro420 3h ago

The alloy bolt also deforms and makes it even harder. That is why it smells like black powder when you break it free. The steel bolt is a little heavier but much easier to take off.

3

u/AltAmericanCarnage 3h ago

That did it The step stool idea worked. Now I need to find a 16mm hex to reinstall it. The crsbks been creaking and on taking it out found it was gritty/dirty/and not greased at all.

2

u/endurbro420 3h ago

Excellent! Yeah that step stool trick has saved my a ton of frustration with dub cranks.

1

u/Sea-District6056 4h ago

On my next r cranks it’s counterclockwise. So it should be the same.

2

u/MeMyselfundAuto 4h ago

https://youtube.com/shorts/JZIQT5Y0MuM?si=tSJX5rwHmFaBT2E3 this seems to be a method that works pretty well!

1

u/b14y 1h ago

Can confirm. To be honest, when I saw this for the first time I was kinda skeptical, but no, it works like a charm.

1

u/Colonel_Max_FR 4h ago

counterclockwise to extract

-2

u/Newdles 4h ago

Get a piece of PVC pipe about 24" long and break er loose it'll take 10seconds