Silent Durable ENGINE SPROCKET Front & Rear Sprocket Fly Chain 14T 15T 42T 44T for Benelli TRK 502 502X TRK502 TRK502X Wide compatible Fit For Benelli TRK502 TRK502X adventure motorcycle drivetrain system, tooth combinations 14T 15T front 42T 44T rear available for different riding demands Direct bolt-on installation; no or extra required during chain set , match output shaft hub rear sprocket mount Built-in mute rubber buffer design on front sprocket; lower friction rattling noise to deliver quieter riding experience during highway off-road travel carbon forging with frequency quenching treatment; hardened tooth surface improves wear resistance to extend life under heavy load cross-country riding Strict OEM dimensional standard; matched tooth pitch fits standard drive chain, avoid chain jumping, slipping abnormal vibration during acceleration climbing