Honda CR250 Phathead Combustion Chambers Chamber selection:HF24 - 14.4cc (105+ octane) Yamaha YZ65 2018-2025+ Phathead cylinder YZ125 Chamber selection:K13 - 8.2cc (100+ octane) CR125R9301 Suzuki RM250 Phathead cylinder
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Ships within 48 hours · Estimated delivery Nov 8 - Nov 13