1. Motorcycle chain sprocket 2. Quality guarantee, competitive price 3. Durable in use, rust-proofing 4. OEM welcomedWe have full production line and professional skilled workers, and advanced technology for producing! Advantage Produce process 1. Rear sprocket: Rough turninginternal and external Grindingblank checkinghobbingchamferingwash Slottingrough shavingdeburringassemblingboring Holefist-stage checking fine shaving final checkingb. 2. Front sprocket: Rough turninginternal and external Grindingblank checkingchamferingfine shaving final Checking High quality 1. Abrasion resistence 2. Wear-resisting 3. Long life time 4. Rust-proofing 5. ISO9001 certification Specification Front sprocket 13T,14T,15T,16T,17T etc Rear sprocket 35T,36T,37T,38T,39T,40T,41T,42T,43T,44T,45T,46T,47T,48T etc Chain 415,420,428,520 etc Material 45# steel(SAE 1045), A3# steel(SAE Q235), 16Mn steel etc. Heat treatment High frequncy quenching,carburization Surface treatment sand blasting ,dull polish, galvanization ,chrome plating Colour Black, zinc ,white ,slivery ,natural colour Technology Hobbing,forging,stamping Packing blister card,bubble bag,colour box or as your requirment Delivery fast delivery