Gates CDX rear sprocket 30 teeth 9-Spline Shimano. Outer diameter 103.3mm. Gates rear sprockets are used in combination with a Gates belt (belt not included) instead of a chain. Gates uses 4 product lines. These product lines are often used by Gates to indicate for which type of bicycles the part is intended. This product belongs to product line: CDX: powerful commuter bikes, trekking bikes, mountain bikes, cargo bikes and e-bikes, and extreme conditions. Product line: CDX Compatible: Any Shimano Body Mounting: Freewheel hub with 9 splines Mounting type: 9 splines Material: RVS Finish/color: Silver Gates Item number: 738133 EAN code: 4262428333757 Supplier number: 789800645-AM Retail packaging: Yes