2FAST 90cc 50mm - Alternative Piston Kit (12mm Pin)

G-FORCE POWERSPORTS Verified independent store

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This product is very similar to 2Fast 90cc piston but piston skirt is 3mm shorter This leaves the exhaust port open slightly at TDC Customers that have tried this piston report no issues in reliability or any performance changes GForce is not liable for any issues caused by the usage of this piston Requires the use of a 12x17 wrist pin bearing Show more