1986-1990 Yamaha YZ490 O-Ring Chain and Sprocket Kit

Volar Motorsport O-Ring Chain

Quality engineered for strength and durability

Solid rollers and bushings work harder and last longer

Reinforced rollers endure high impact

Quad-stake riveted for exceptional shock absorption

Unique protruding bushings designed to reduce kinking and extend O-ring life

Chains are pre-stretched and shot-peened

Tensile Strength: 9,850 lbs

Material: Alloy Steel

Rivet Materlink is included (Riveting tool may needed , Not Included)

Stock Replacement style Sprocket by Volar Motorsport.

Heat treatment for added strength and wear resistance.

Zinc plated and have a baked on durable paint process for corrosion resistance.

Material: C45 Carbon Steel

Specification:

Front Volar Sprocket: 14 Teeth

Rear Volar Sprocket: 48 Teeth

Volar O-Ring Chain: 520x112