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NOS Honda 80 ATC185 81-82 ATC200 Steel Rear Sprocket 55T 520 AHRMA MX

Renthal 421-520-47HA 47T Rear Sprocket

Sunstar 520 Works Triplestar Aluminum Rear Sprocket 50T - 5-355950

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KTM PowerParts Steel Rear Sprocket - Black, 520 / 50T 58210951050

JTA251 Yamaha YZ125,250,250F,400F,426F,450F WR250F,450F 99-23 47T Rear Sprocket