Did everyone see the new Cosworth bike piston?
Anti-scuff side coating, Electro polished top, I'm not sure what ring package Yami's are running currently, but it's got a very thin single ring package=less friction. Material, Casidiam coated wrist pin, from the wall thickness of it could be a Ti pin..... And all the F1 engineering goodness you could ever want.
Won't a lighter wrist pin change the balance?
Yup. For some reason that doesn't seem to bother most piston makers. The Weisco I got for My KLX300 was 10 grams heavy. Boy was that fun to balance out,tapering the ends of the wrist pin was hard on the carbide boring bar........