Pay in 4 interest-free payments of $4.25 Learn more
Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
5 seconds in the quarter mile while adding extra MPH of top speed for only $127
Fitment is based on dimensions and mounting configuration
Factory-calibrated to EPA emission specs — bolt-on installation with no jetting adjustments required
Flywheel side crankshaft bearing
Engine Compatibility: 150cc GY6 / 250cc CN250 (172mm)
Universal Parts Valve Set for 250cc Scooters scooterworks air filter 5 seconds in the quarterUniversal Parts valve set for BN172MM 250cc 4 stroke water cooled engines. Includes intake and exhaust valves. Valve Length (both): 77. 35mm Exhaust Valve Outer Diameter (valve face): 26. 3mm Intake Valve Outer Diameter (valve face): 30. 3mm Outer Diameter of Stem (both): 5mm 250cc 172mm 4 stroke, Boreem (BMS), CFmoto V3 V5, Honda, Kazuma, Roketa, SUNL, Tank, Various unlisted makes models
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