Do i have this right?(bore sizes)

[trx400EXtreme]

85:00mm=stock
86:00mm=406
87:00mm=416
88:00mm=426
89:00mm=440

is this right?????

[416exfreak]

Im pretty sure that you have them right. I know that 89 is 440cc's.

[trx400EXtreme]

yea i knew that and that 85 was stock so i just added what was left.

[JOEX]

Isn't 89.5mm a 'true' 440cc?

[kaptainkx]

89.5 is as close to 440 as you can get, 89mm is actually 435 but everyone refers to it as 440