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Dustin075
02-07-2008, 01:59 PM
89mm is a 440 correct? so a 89mm piston should fit in a 89mm sleeve correct?

drew416ex
02-07-2008, 02:43 PM
Well 89mm is actually a 435, but you will have to have the cylinder measured to make sure its within tollerances and to make sure its not warped or anything.

Dustin075
02-07-2008, 02:51 PM
ok i bought a brand new sleeve from wisco and the guy from my honda dealer told me that it is the 440 sleeve. the sleeve says 89mm on it. is that not the right sleeve for a 440?

TRXRacer1
02-07-2008, 03:20 PM
Originally posted by Dustin075
ok i bought a brand new sleeve from wisco and the guy from my honda dealer told me that it is the 440 sleeve. the sleeve says 89mm on it. is that not the right sleeve for a 440? That is your typical 440 sleeve but like drew said you want to measure it before you buy a piston.

Dustin075
02-07-2008, 03:32 PM
ok so basically measure twice buy once. should i stick with wisco for the piston or is there a better brand? the sleeve is a wisco.

drew416ex
02-07-2008, 05:41 PM
Wiseco, CP, JE, they are all good.