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WARNING: These smooth discs are designed for use with a single spring hub and a simple type pressure plate.
The HINSON smooth disc kit (manufacturer part number SP557-7-2101) is aimed at motocross riders who demand crisp and consistent clutch action on the track. Designed and manufactured in the USA, these discs embody Hinson's championship-winning expertise and are adopted by many top teams and riders.
Optimized grip while limiting heat buildup for consistent response under heavy use.
Rigorous production tolerances and flatness for uniform stacking and controlled wear.
Recommended to enhance the performance of Hinson clutch baskets, inner hubs, and pressure plates.
Manufactured to high-quality specifications with materials resistant to stress and temperature.
Compatible with certain original components (baskets, nuts, and pressure plates) — check vehicle reference before installation.
Manufacturing: United States.
Ideal for motocross practice, this kit is particularly suited for Kawasaki KX 250 (2026 and similar models) and other listed machines. For a sharp clutch feel and precise modulation on demanding terrain, these HINSON discs are a serious option for riders looking to enhance the reliability of their transmission.
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