US$ 335.00
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and red will restock mid 2023
72mm chamber Does not fit Athena
CX50 stock compression
8cc (105+ octane)
Compression release replacement brass fitting for Phathead
Honda CR500 Phathead Combustion chambers YZ250 and red will restock midChamber selection: HN50 66. 4 Stock compressionHN51 64. 4cc (95+ octane)HN52 62. 5cc (100+ octane)HN53 60. 8cc (110+ octane)