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Racing Big Bore Kits
YZ250 1999-2019 300 Big Bore kit.
The kit includes: 72mm 293cc big bore cylinder. cylinder Head and powervalve, Namura 72mm piston, rings, pin and clips, and top-end gasket set..This is a bolt on kit, no case mods needed. Fits: 1999-2018 YZ250 (2 -stroke)
Total for the kit: $750.00