This is a xpost from the Turner forum, but I wanted to solicit input from S Work crank owners. Maybe I'm missing something.
The bb (factory Specialized BB30) and crank with spacers are correctly installed. I even took it to a reputable Speci mechanic for a second opinion. Nope, not a thing wrong. Are any S Work crank users having issues with flex under extreme torque?
Here is my explanation at the Turner forum:
I have a Czar, size large, and the 2013 S-Works 175mm crank being used is rubbing the right chainstay under extreme hard pedaling. At first I thought it was the rubber boot crankarm protector, but even after cutting away the boot's inside I'm still having the inside of the crank arm touch the right/DS chainstay.
The crank and bb are properly installed. The S Works crank is a 166 or 167 factor, and there is proper distance between the chainstay and crank arm in all situations except the aforementioned in-saddle and out of saddle situations with extreme torque. I'm 162 pounds and a XC racer so it's not like I'm an insanely powerful torque monster.
I'm aware the S Works crank on a Czar combo is pretty rare. At this point I'd rather not use a Shimano crank with my Praxis conversion due to this particular Czar being spec'd as a lightweight marathon racer.
A reply pointed toward the oem BB being a flexy SRAM item. Maybe that's the cause? Kind of hoping so since it'd be an easy fix.
Thanks in advance.
The bb (factory Specialized BB30) and crank with spacers are correctly installed. I even took it to a reputable Speci mechanic for a second opinion. Nope, not a thing wrong. Are any S Work crank users having issues with flex under extreme torque?
Here is my explanation at the Turner forum:
I have a Czar, size large, and the 2013 S-Works 175mm crank being used is rubbing the right chainstay under extreme hard pedaling. At first I thought it was the rubber boot crankarm protector, but even after cutting away the boot's inside I'm still having the inside of the crank arm touch the right/DS chainstay.
The crank and bb are properly installed. The S Works crank is a 166 or 167 factor, and there is proper distance between the chainstay and crank arm in all situations except the aforementioned in-saddle and out of saddle situations with extreme torque. I'm 162 pounds and a XC racer so it's not like I'm an insanely powerful torque monster.
I'm aware the S Works crank on a Czar combo is pretty rare. At this point I'd rather not use a Shimano crank with my Praxis conversion due to this particular Czar being spec'd as a lightweight marathon racer.
A reply pointed toward the oem BB being a flexy SRAM item. Maybe that's the cause? Kind of hoping so since it'd be an easy fix.
Thanks in advance.