MTX 746 Steel Rear Sprocket #520 size:44 Tooth designed for the year-round-rider

designed for the year-round-rider

Reflective webbing

When RK develops a chain with a combined heritage of both drag racing and extreme endurance racing

Oil/fuel mix ratio indicator on top so you know if you've mixed or not

race tested

MTX 746 Steel Rear Sprocket #520 size:44 Tooth designed for the year-round-riderMTX 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