Genuine SYM GY6 150 Crankshaft Silicone Seals (pair)- (19.8x30x5) OTB Prototypes the torque spring is an

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Genuine SYM GY6 150 Crankshaft Silicone Seals (pair)- (19.8x30x5) OTB Prototypes the torque spring is anThese Genuine Silicone Crankshaft Seals for the GY6 150cc are a direct replacement. Both of these are required as it fits on both ends of the crankshaft. The seals are made from a heat resistant silicone rubber that provides enough flex but can stay rigid. This is the best option in your engine as it is capable of reaching high temperatures. These are always recommended to be replaced when taking out the crank of doing any case splitting work. This is