S-Works crank for PF30

Discuss light weight issues concerning road bikes & parts.
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gregalfa
Posts: 89
Joined: Tue May 10, 2005 4:59 am

by gregalfa

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?
The Great CarboniO

by Weenie


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bikerjulio
Posts: 1901
Joined: Fri Dec 11, 2009 10:38 pm
Location: Welland, Ontario

by bikerjulio

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.
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

gregalfa
Posts: 89
Joined: Tue May 10, 2005 4:59 am

by gregalfa

i have Sarto frame with rotor 4630 trying to set up with s-works crank with power2max type-s.
The Great CarboniO

jever98
Posts: 809
Joined: Wed Feb 18, 2009 12:02 pm

by jever98

@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
----
No longer in the industry

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grid256
Posts: 364
Joined: Tue Dec 15, 2009 8:32 pm

by grid256

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!

mnmasotto
Posts: 621
Joined: Mon Jun 06, 2011 7:16 pm
Location: Irvine, CA

by mnmasotto

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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grid256
Posts: 364
Joined: Tue Dec 15, 2009 8:32 pm

by grid256

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.

mnmasotto
Posts: 621
Joined: Mon Jun 06, 2011 7:16 pm
Location: Irvine, CA

by mnmasotto

Standard BB30 bottom bracket width is 68 mm. The Specialized OSBB is 61 mm.

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bikerjulio
Posts: 1901
Joined: Fri Dec 11, 2009 10:38 pm
Location: Welland, Ontario

by bikerjulio

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

by Weenie


prebsy
Posts: 761
Joined: Tue Oct 23, 2012 10:52 pm
Location: PHL

by prebsy

So in a totally impulsive move i bought a sworks quarq spider and a set of the new 2014 sworks arms to install on my Neilpryde Nazare. I tired dry fitting all the pieces together and it doesn't seem like it would be straight forward to make the crank fit. So am I S.O.L.? Will the crank only fit an OSBB or will I be able to fit it to the fsa pf30 bb with some modifications? If anyone has successfully done this already it would be greatly appreciated to see your set up.

Here is the manual for installation instructions from the big S:
http://static.specialized.com/media/doc ... 8_revC.pdf

Saw this thread: viewtopic.php?f=3&t=124333

but no real conclusions...

Edit: I'm wondering if some of the new alloy pf30 BBs would work better the lips seem to be very tiny, for example the wheels manf. pf30

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