biggest stock cylinder bore?

fourtrax250r · #1 (**permalink**) 03-05-2008

whats the biggest bore that you can go on a stock 250r cylinder. in mm would be greatly appreciated.

fulltiltrider · #2 (**permalink**) 03-05-2008

69mm I think

nitrousbaby · #3 (**permalink**) 03-05-2008

what ever a 130 over is

fourtrax250r · #4 (**permalink**) 03-05-2008

ok then, what about with a big bore resleeve? i want to know how many overbores a 73.45mm stock cylinder has left.

nitrousbaby · #5 (**permalink**) 03-05-2008

73.45 thats a big bore must be a 295 on one of its last bores cuz I believe the 295 resleave is a 72mm bore

rsss396 · #6 (**permalink**) 03-05-2008

I do think wiseco makes a 69.5mm but 69 is the biggest Pro-x

fourtrax250r · #7 (**permalink**) 03-06-2008

i found out the biggest bores..... 69.5mm for a stock cylinder and 73.5mm for a big bore re-sleeve. thanks for the help guys.

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