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The Renthal Twinring™ Rear Sprocket with 49 teeth offers exceptional durability and lightweight performance designed for demanding motorcycle applications. Crafted with high strength Ultralight™ 7075 T-6 aluminum for the inner ring, this sprocket ensures a robust foundation that withstands rigorous riding conditions. The outer ring is made from electro-less nickel coated steel, providing maximum durability and resistance to wear, making it ideal for off-road and motocross use. The unique manufacturing process involves expanding the steel outer ring at 200°C and fitting it over the aluminum inner ring, creating an interference fit combined with a wave pattern that guarantees a permanent bond for the life of the chainwheel. This innovative design ensures long-lasting performance without compromising weight. The flat socket head screws add additional strength during side impacts and prevent contact with the chain guide, enhancing overall reliability. Self-cleaning mud grooves between each tooth help prevent dirt accumulation, reducing chainwheel wear and maintaining optimal performance. This sprocket is engineered to outlast standard all-aluminum sprockets by three times while remaining significantly lighter than all-steel options, offering an excellent balance of strength and weight savings for competitive riders and enthusiasts alike.
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