The 520 17T Motorcycle Front Sprocket Gear Pinion is an essential piece for anyone who values precision and durability when it comes to their bike's gears. This high-quality part is specifically designed to work with a range of BMW motorcycles, from the S1000 S and S1000RR models from 2009 to 2018, to the S1000XR models from 2014 to 2018. It also fits with the 1000 4 model from 2013 to 2015 and the 1000cc model from 2013 to 2015. Made with precision-machined steel, these gear pins offer reliable performance and long-lasting durability. Their 17T teeth ensure precise engagement with the rear sprocket, providing a smooth and effortless ride. The sprockets are also compatible with the 2013 to 2015 1000 4cc, making them a versatile choice for various motorcycles. Whether you're a professional biker or just a casual enthusiast, investing in this gear pinion is a smart move for your bike, as it guarantees optimal performance and longevity.