PSR Manual Cam Chain Tensioner Yamaha YZF-R1 1000 04-07

PSR (PowerStands Racing) has been designing and producing performance parts for motorcycles since 2001. It is best known for its selection of adjustable levers, but there are actually plenty more products available that help owners of off-road motorcycles, sport bikes, and V-Twin cruisers & tourers perform all-around customization. From mirrors to steering damper kits, we offer a wide selection of PSR USA parts and accessories that will help you level up the look, feel, and performance of your motorcycle.