Recently I've noticed that one of my pedals has been feeling loose. When I went to tighten the bolt that attaches it to the crank arm, I found that no matter how much I tightened the bolt, there was still too much play in the pedal. It looks like the hole in the crank arm which the pedal attaches into is now too big and there seem to be small hairline cracks running from the hole. It's a carbon fiber crank arm (FSA Octalink, carbon fiber) so I imagine that the CF has become fatigued (if that's possible) and the crank arm need to be replaced.
I currently have a 9 speed Dura Ace groupset. I'd prefer to avoid up/downgrading the whole groupset to 10 speed (probably Tiagra due to budget limitations). From looking around, it seems that using a "10-speed" crankset with a 9-speed cassette is okay, and using a 9-speed chain is also okay.
Any opinions or comments?
I currently have a 9 speed Dura Ace groupset. I'd prefer to avoid up/downgrading the whole groupset to 10 speed (probably Tiagra due to budget limitations). From looking around, it seems that using a "10-speed" crankset with a 9-speed cassette is okay, and using a 9-speed chain is also okay.
Any opinions or comments?