bb30 vs pressfit bb30

Discuss light weight issues concerning road bikes & parts.
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ninjanoir78
Posts: 186
Joined: Sat Jul 19, 2008 8:14 pm

by ninjanoir78

HI, I have a super six evo, pressfit bb30 ( sram red cannondale crank) I just want to know if I put a new sram red crank 2013 or sram 22 bb30 if its ok, cause sometimes on website I can see bb30 crankset and/or pressfit crankset, the crank and spindle are the same or not?? or just the bb change?

thanks
Ninja

by Weenie


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

by bikerjulio

This whole area has become very confusing because of manufacturers messing around with the names of things.

"BB30" is a technical standard developed by Cannondale.

"PF30" was invented so that the frame could be built to looser standards and still use a "BB30" crankset.

"Pressfit" crankset nowadays could mean anything since everyone else (meaning Shimano) is pressing adapters into frames.

But a BB30 crankset will work in your Cannondale frame. No Problem.
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

ParisCarbon
Posts: 804
Joined: Mon Feb 05, 2007 5:39 am
Location: Winnipeg Canada

by ParisCarbon

The only diff between BB30 and PF30 is with BB30 the bearing pressed directly to the frame, while with PF30 there is a cup that is pressed into the frame and then the bearing is pressed into that cup.. this eliminates any imperfections in the "roundness" of the BB shell...

I run the Hollowgram SRM on my Cannondale, so I can't speak for the SRAM design.. the only thing I would make sure of is that there is ample clearance on the back of the crank to now clear the lip of the PF30 cup... My SRM is a 2010 model and does not have a bevel around the center, so I needed to use the new Cannondale 109mm BB spindle with no shoulder and 2 plastic washers with the 2.5mm spacer to push the SRM away from the PF30 cup lip....

timzcat
Posts: 315
Joined: Thu Sep 30, 2010 5:50 am

by timzcat

You are fine. Either crank will fit the Evo. The new Red cranks have a longer spindle and even fit BBRight if you remove the adjuster. I have a Red 22 Quarq in my Evo (PF30) and an Exogram Red in my CAAD 10 (BB30) and they are interchangeable.

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ms6073
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Joined: Fri Jul 23, 2004 8:24 pm
Location: Houston, Texas

by ms6073

ParisCarbon wrote:My SRM is a 2010 model and does not have a bevel around the center, so I needed to use the new Cannondale 109mm BB spindle with no shoulder and 2 plastic washers with the 2.5mm spacer to push the SRM away from the PF30 cup lip....

Sure would have been nice if Cannondale had introduced 109mm spindles a year earlier as that way I wouldn't have had to replace two SRM's to work with PF30 cross frames. :unbelievable:
Michael - The Anaerobic Threshold is neither...

Buffalo
Posts: 93
Joined: Mon Oct 24, 2011 5:13 am

by Buffalo

I gather those are your srm's on eBay right now :mrgreen:

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ms6073
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Joined: Fri Jul 23, 2004 8:24 pm
Location: Houston, Texas

by ms6073

Buffalo wrote:I gather those are your srm's on eBay right now :mrgreen:
Yes they are but only because I am downsizing the cross bike inventory and also because I was unable to re-purpose them by finding an economical means of installing them on our time trial bikes that have BSA bottom brackets. :beerchug:
Michael - The Anaerobic Threshold is neither...

by Weenie


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