View Full Version : Do i have this right?(bore sizes)
trx400EXtreme
12-30-2007, 07:49 PM
85:00mm=stock
86:00mm=406
87:00mm=416
88:00mm=426
89:00mm=440
is this right?????
416exfreak
12-30-2007, 07:51 PM
Im pretty sure that you have them right. I know that 89 is 440cc's.
trx400EXtreme
12-30-2007, 07:54 PM
yea i knew that and that 85 was stock so i just added what was left.
Isn't 89.5mm a 'true' 440cc?
kaptainkx
12-31-2007, 09:00 PM
89.5 is as close to 440 as you can get, 89mm is actually 435 but everyone refers to it as 440
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