Description
Kawasaki KX250 Phathead Combustion Chambers Chamber selection:W21 21.6cc Stock compression 6cc (100+ octane) H33 CR85 big bore kit Color:Bronze CR125R9301 YZ296 72mm 100 octane 6cc (100+ octane) H33 18 301SX 23cc Mid compression 95+ octane reccomended