powpow

So, I found the source of my clicking K-Force Light crankset:



It's the wave washer that sits between the left crankarm and the bearing cover. I'm going to head to the LBS and hope they have one, but would a flat washer work if not? And just out of curiosity, what would happen if I installed the crankarm without that washer there at all? Bad idea?

One last question: The bearing cover on the left side seems a little loose. Is this normal and once the crank arm/washer is tightened down the cover will be tightened down as well?

Thanks!

FBinNY 

I don't know that particular BB, but usually a wave washer is used to exert thrust, as in to preload a bearing, or prevent axial movement without the need for precision that a flat washer would need to do the same job.

I doubt you'll succeed with a flat washer, especially if the design uses the crank arm spacers and wave washer to preload the bearings.

OTOH, you might have success combining spacers with an O-ring to act as the compressible member of the set. Buy a few O-rings of the right diameter and varying thicknesses to try trial and error.

zacster

You may find one at the LBS, but you can also order one from FSA. I had to order parts from them for my older SL-K crank, but nothing is cheap. I wish my crank took the wavy washer because I find it doesn't stay tight.