Features 1. Perfect Fitment: Chain slider tensioner roller fits ATV Coolster Go Kart 110cc 125cc 150cc 200cc 250cc, precise matching. 2. High Quality Material: Chain tensioner guide constructed from high-quality steel alloy and ABS material, rust-resistant, wear-resistant, durable. 3. Excellent Performance: Chain roller guide tensioner resists oxidation, deformation, and bending, ensuring stable performance and reliability. 4. Professional Design: Precision manufactured with fine craftsmanship to prevent chain slippage and snapping, designed for extended service life. 5. Easy Installation: Simple to install and allows for automatic chain adjustment, providing convenience and saving time. Specification Item Type: Chain Slider Tensioner Roller Material: Steel alloy + ABS Applicable Chains: Compatible with 420, 428, and 530 chains Application: Aftermarket replacement for original spring bearing chain idler tensioner and pulley Function: Protects the swing arm, ensures proper chain guidance, prevents chain derailment and excessive sprocket wear, extends chain lifespan Fitment: Designed for ATV Coolster Go Kart 110cc 125cc 150cc 200cc 250cc Package List 1 x Chain Slider Tensioner Adjuster 1 x Axle 1 x Spring 1 x Replacement Roller