OEM Stock Bore Size 64
designed specifically for 2008–2025 Yamaha XT250 and 2008–2013 Yamaha Raptor 250 models
Chrome wristpins & full clip set – precision fit and long service life
it can create a displacement of either 734cc or 780cc depending on your stroker crankshaft setup
75" inside diameter opening
Yamaha Banshee Athena 421cc Big Bore Stroker Kit CP Pistons Crank Head Domes Cub 30-30950 OEM Stock Bore Size 64S410485301023, S410485301024, P400485100024, 573M06800, 4111, CBK0044, PD300, M16800, 808812, 822154, BR8ES, K018, 10 301, B1005, 21. 2020, 8101D200, 2GU 11311 00 00, 2GU 11321 00 00,2GU 11181 00 00, 2GU 11631 00 94, 2GU 11610 01 00, 4L0 11633 00 00, 93450 17129 00, 93310 316D6 00,3GG 11351 02 00, B0627020F, B0627018AFM, B0627015F, 99530 10114 00, IR019018AFM, MNB160210225A, 8055681300989, 29L 11400 30 00 29L 11412 00 00 29L 11401 09 00, 29L 11442 10