Silent Durable Chain Sprocket Kit Fit For Benelli TNT300 BN302 Keeway RKX300 STELS 302S 502C Wide compatibility with Benelli TNT300 BN302 TORNADO Keeway RKX 300 STELS BN TNT 300 302 302S 502C; transmission assembly structure Direct bolt on mounting; aligned sprocket base mounting holes; matched shaft aperture for quick assembly machined sprocket teeth; smooth chain meshing contact; low running noise to sustain consistent driving power sprocket body; thick silent drive chain; complete matched connecting link accessories included Uniform tooth pitch overall dimension standard; gap tolerance; stable linkage to lessen driving vibration