as i'm exploring different options for my motor builds i called Venom to get some of their custom Cp piston weights.

yfz 100mm 14.25:1=298 grams (piston)
yfz 98mm 12.25:1 = 300 grams (piston) and 406 grams (complete)
yfz 98mm 14.25:1 = 284 grams (piston) and 381 grams (complete)
wr 95mm 14:1 = 261 grams (piston) and 355 grams (complete)
wr 98mm 14.25:1 = 267 grams (piston) and 367 grams (complete)

didn't want the work to go to waste- just in case anyone else wants to know.

for what it's worth i checked on a Cp shelf piston as well.
yfz 95mm 12.5:1 and it's 280 grams (piston)

thanks Dozer....

the "complete" weight refers to piston + rings + wrist pin + clips

how much does a yfz 95 mm 12.25:1 piston weigh

just call the shop and have tress weigh it for you.... 517 655-2870

will do mixxer thanks