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Duotone panel — violet briefing on the left, lime-sealed detail sheet on the right.
KTM/Husky/GASGAS screw on and quarter turn gas tanks
and red will restock mid 2023
Kawasaki KX500 Phathead cylinder head kit with compression release 1988-2004
Our chambers are cut for the 85cc bore but work just fine with the 80cc bore as well
KTM300SX 2023+ Phathead cylinder head kit
Yamaha YZ250 combustion chambers Chamber Selection:Y22 - 20.1cc (100+ octane) KTM/Husky/GASGAS screw on and quarterChamber selection: 1999 2022 Y20 22cc Stock compression for the X model Y21 21. 1cc Stock (91+ octane) Y22 20. 1cc (100+ octane) Y23 19. 1cc (105+ octane) 1999 2022 big bore chambers: YZ295 24. 8cc 72mm 93 octane Revised squish clearance . 055" YZ296 24cc 72mm 100 octane Revised squish clearance . 055" 1988 1998 Y30 stock Y31 (95+ octane) Y32 (100+ octane) Y33 (105+ octane)