QAZAKY Chain Tensioner Spring Roller Adjuster Heavy Duty for Pit Dirt Bike Mini Motor ATV Motorcycle Quad 50cc 90cc 110cc 125cc 140cc 150cc Doodlebug 212 SSR SDG Polaris Predator 415 420 428 520 530

• Heavy duty chain tensioner spring roller adjuster use on all chain sizes 415, 420, 428, 520, 525, 530, 630 etc.
• Fits 49cc - 50cc, 60cc, 66cc, 70cc, 80cc, 90cc, 110cc, 125cc, 140cc, 150cc, 200cc, 250cc engines.
• For most motorcycle, atv, quad, scooter, go kart, moped, chopper, mower, pit bike, dirt bike, mini bike and other bikes chains.
• For SSR SDG XR50 CRF50 4 Wheeler Doodlebug 212 Predator Motor Polaris Outlaw 90 etc.
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Specifications: 100% brand new and high-quality heavy duty chain tensioner spring roller adjuster. For use with all chain sizes. Manufactured from high quality materials, which will built to long lasting durability and performance. Package includes: 1 x roller. 1 x bracket. 1 x clip spring. 1 x screw. Compatible with: For chain sizes 415, 420, 428, 520, 525, 530, 630 etc. Fits 49cc - 50cc, 60cc, 66cc, 70cc, 80cc, 90cc, 110cc, 125cc, 140cc, 150cc, 200cc, 250cc engines. For most motorcycle, atv, quad, scooter, go kart, moped, chopper, mower, pit bike, dirt bike, mini bike and other bikes chains. For SSR SDG XR50 CRF50 4 Wheeler Doodlebug 212 Predator Motor Polaris Outlaw 90 etc. Size: Length: 3.46inch / 88mm. Installation hole inner diameter: 0.59inch / 15mm. Roller inner diameter: 0.48inch / 12.3mm. Roller inner width: 19mm. Roller material: nylon polyurethane. Spring length: 2.36inch / 60mm. Features: This chain tensioner automatically adjusts while you are riding via a very powerful torsion spring in which the tension is fully adjustable. Comes with pulley, bracket, nut, clip spring to make a whole tension adjuster kit for easy use. Heavy duty chain roller tensioner with upgraded spring, thicker wire and longer travel. This chain tension adjuster kit is applied for the use with most chain sizes.It is necessary for all serious riders. It ensures proper chain tension and alignment, and prevents the chain derailment, excess wearing of the sprocket and prolong chain's life.