Black Spring Loaded Chain Tensioner Kit Fit for 49cc 66cc 80cc Engine Motorized Bike

Feature: 1. Perfect Fitment: Fit for 49cc 66cc 80cc Engine Motorized Bike, a good replacement for bike. 2. High Quality: Keeps chain from popping and snapping. Made of high quality material, not easy to bend deformation. 3. Application: Can be used for all chain drive applications including center mount and rear mount chain drive for gas motorized bicycle plan kits. 4. Function: Ensures proper chain tension and alignment, prevents the chain derailment, excess wearing of the sprocket and prolongs chain s life. 5. Practiacal: Lightweight and compact design, safe and easy to use. Strong compatibility and high practicability. Specification: Item Type: Spring Loaded Chain Tensioner Kit Material: Metal alloy + spring + cardboardFunction: Protect the swing arm and help guide the chain correctly, prevent the chain derailment, excessive wear of the sprocket and prolong the life of the chain. Fitment: Fit for 49cc 66cc 80cc Engine Motorized Bike. Package List: 1 x Spring Loaded Chain Tensioner Kit(12pcs)