MTX 857 Steel Rear Sprocket #520 size-oxford-indicator-rectangle-long-blk-pair The Resonance Chamber Technology (RCT)

The Resonance Chamber Technology (RCT) reduces noise levels while maintaining maximum flow for competitive use

2mm diameter to ensure compatibility with most traditional clamps and controls

Reduces ankle strain by offering a secondary shifting point for smoother transitions

The speakers incorporate a low profile bevel

this reduces hand temperature and subsequently reduces stress to the palm

MTX 857 Steel Rear Sprocket #520 size-oxford-indicator-rectangle-long-blk-pair The Resonance Chamber Technology (RCT)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. OEM replacement