Sprocket Rear MTX 51T #520

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MTX OE Steel sprockets are strong and durable, heat-treated and hand-finished for longevity. Front sprockets are constructed from SCM420 chromoly steel alloy, where rear sprockets are constructed from C45 high carbon steel with a Zinc electroplated finish. Designed as an OEM replacement to exceed OEM specifications at a fraction of the price, making them your ideal cost-effective solution for replacing old worn and warped sprockets. Features: OEM replacement. Exceeds OEM specifications. Heat-treated and hand-finished. Pitch: 520 Teeth: 51 Show more