Gates Carbon Drive CDX Stainless Rear Sprocket No Rust. No Chain. No Excuses. Riders who put serious miles on a belt drive system need a rear sprocket that holds up as long as the belt does. The CDX Stainless Rear Sprocket is matched to the CDX belt line, which is the top tier of the Gates Carbon Drive system and the one designed for off-road riding, global trekking, and high-mileage touring. Stainless steel construction resists corrosion in wet, muddy, or coastal conditions where a standard chain sprocket would be showing rust within a season. It works with internally geared hubs and single-speed setups, and tooth count options let you dial the gearing for your specific frame and hub combination. Verify your tooth count and hub interface using the Gates Bicycle Drive Assistant before ordering. Features CDX(TM) designation matches the top-tier Gates belt line for off-road, touring, and high-mileage applications Stainless steel construction resists corrosion in wet and muddy conditions where standard sprockets corrode quickly Center Track(TM) compatible center-grooved profile keeps the belt tracking true on the sprocket under hard use IGH and single-speed compatible fits internally geared hub setups; not compatible with derailleur systems | Gates Carbon Drive | Cdx Stainless Rear Sprocket 24T (Sure Fit 3-Lobe)