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**JET** · 01-27-2006

Any turn is going to kill the nitride coating. .006" will be the max thickness of the coating. Bearings are .010" under usually. You can have it re-nitrided, but it is usually cheaper to buy a used crank and get it polished.

Small grooves in the crank don't really have a detrimental effect, as long as there aren't many and it is polished flat.

01-27-2006	#7
JET Is funding Exxon. Join Date: Oct 2003 Location: Ham Lake Drives: like a bat outta hell! Posts: 7,983	Re: ??? About Crank and HP Any turn is going to kill the nitride coating. .006" will be the max thickness of the coating. Bearings are .010" under usually. You can have it re-nitrided, but it is usually cheaper to buy a used crank and get it polished. Small grooves in the crank don't really have a detrimental effect, as long as there aren't many and it is polished flat. __________________ Is burning corn and stayin' warm! My motorcycle is stock and reliable, my Talon is neither!