Description
Y32 - (100+ octane)
6cc Stock compressionW22 - 20
4 Stock compressionHN51 - 64
Remove the original guts from the stock plastic cap and install into the new billet shell
Suzuki RM250 Phathead combustion chambers Chamber Selection:S21 20.6cc Stock Y32 (100+ octane) Chamber Selection:SX86 10 (100+ octane) 2025+ CR125R9300 Heads will ship when yz65 Y32 (100+ octane) 6cc Stock compressionW22 20