Probably the stocker could have run longer, but the RK Excel is a nice upgrade, with black side plates and included rivet link. The quiet part? KTMs of this design are notorious for “chain slap,” where the chain runs over nylon guides above and below the swingarm pivot. At certain engine speeds and loads, the clacking can be pretty obnoxious. Without question, the new RK is a lot quieter (at the same tension) than the original chain. Not exactly breaking news but a happy observation.