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 Post subject: S-Works crank for PF30
PostPosted: Thu Apr 03, 2014 9:32 am 
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Joined: Tue May 10, 2005 4:59 am
Posts: 78
I bought 3sets of s-work crank and just tried to install one of them to PF30 frame.
It seems to me the spindle is not long enough. Is the crank made for BB30 only?

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PostPosted: Thu Apr 03, 2014 9:58 am 
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Joined: Fri Dec 11, 2009 10:38 pm
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Location: Toronto
PF30 and BB30 both use the same cranks.

Both PF30 and BB30 fit frames with 68mm wide BB shells.

Perhaps more information about your frame and the BB you are using would help.

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Posted: Thu Apr 03, 2014 9:58 am 


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PostPosted: Thu Apr 03, 2014 3:30 pm 
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i have Sarto frame with rotor 4630 trying to set up with s-works crank with power2max type-s.

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PostPosted: Mon Apr 07, 2014 2:43 pm 
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in the industry

Joined: Wed Feb 18, 2009 12:02 pm
Posts: 507
@Gregalfa: The delrin cup of the PF4630 gets in the way. You either need to add a small spacer on the drive side to move the whole crank arm out a bit or sand down the lock ring a tiny bit so that the lock ring and delrin cup don't touch.

Best
Nicolas

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PostPosted: Tue Apr 08, 2014 1:06 pm 
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Has anyone successfully run S Works bb30 cranks in a press fit 30 bb? I ask because I recently installed my cranks in a frame with a pf 30 bb and before getting even close to full torque, the crank binds and will not spin. This is last years crank with the allen key washer/adjuster on the non-drive side which I suspect may be the issue. Should I just use some wavy washers instead and ditch the Spesh adjuster?

For reference, SRAM bb30 and Rotor 3D+ cranks have both been installed in the pf30 bb in question and work flawlessly.

Many thanks!


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PostPosted: Thu Apr 10, 2014 2:14 am 
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Joined: Mon Jun 06, 2011 7:16 pm
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Location: Irvine, CA
The specialized OSBB is more narrow than a standard BB30 bottom bracket so i believe the cranks will not work correctly.


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PostPosted: Thu Apr 10, 2014 7:34 pm 
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Thanks mnmasotto. I've since done some experimenting and the width is certainly the issue. For instance, the PF30 cup rubs against the spider (SRM spider) and seems to be the cause of the tight fit.


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PostPosted: Fri Apr 11, 2014 2:28 am 
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Joined: Mon Jun 06, 2011 7:16 pm
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Location: Irvine, CA
Standard BB30 bottom bracket width is 68 mm. The Specialized OSBB is 61 mm.


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PostPosted: Fri Apr 11, 2014 4:01 am 
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Lot's of confusion here.

Spec OSBB is effectively 68mm wide, std BB30.

The press in cups add 3.5mm each side creating a standard bearing spacing and overall width.

Spec's crank also fits a standard BB30 BB, like their alloy OSBB.

Problems with interference are probably with the edge of the press-in cup, or perhaps the cups are not fully seated.

Check out the Spec table http://www.specialized.com/media/whatsnew/CG0307_RevA.pdf

_________________
There's sometimes a buggy.
How many drivers does a buggy have?

One.

So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.

http://www.youtube.com/watch?v=GekiIMh4ZkM


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Posted: Fri Apr 11, 2014 4:01 am 


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