Motorcycle Timing Cam Chain Tensioner compatible with M1000RR K66 S1000R K63 S1000RR K67 S1000XR K69 11315A657F5 M S 1000 XR M1000.This tensioner is designed to maintain proper chain tension in the engine's timing system, accurate camshaft alignment and smooth engine.Constructed to match specifications, it fits directly into the designated engine compartment without modification.The unit is engineered for under regular operating conditions and contributes to performance of the motorcycle's valvetrain system.This component is produced by an independent manufacturer.Brand names are used for compatibility illustration.