Seller notes

Descriptions: High quality：Spring loaded chain tensioner that keeps chain from popping and snapping.  Thicken metal, not easy to bend deformation. Chain Tensioner Spring Loaded For 49cc 66cc 80cc Engine Motorized Bike.  It mounts right to the motor and has a wide range of adjustments to fit your bike perfectly. Can be used for all chain drive applications including center mount and rear mount chain drive for gas motorized bicycle plan kits. Package Include: 1 Chain Tensioner Kit，1x spare s...

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