body p { font-family: Arial, Helvetica, sans-serif;}Shimano HG50 Cassette High quality 8-speed cassette.Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load.Close ratio gearing allows a more efficient use ofenergy through finer cadence control.Sprockets are cut away to further reduce weight without reducing rigidity.Nickel-plated finish offers hard wearing resistance to corrosion.Corrosion-resistant steel cassette lockring.For Narrow 8-speed HG chains. Who are Shimano?Shimano are the world leaders in bike part manufacture and first established themselves as a family business in 1921 in Japan, going on to create the worlds first bicycle freewheel. Shimano are responsible for some of the world's best drivetrains, wheels, pedals, shoes, cycling clothing, to name but a few of the many shimano products available today! Famous for their top end products ridden by the pro's, Dura-Ace and XTR, which cover both road and Mountain bikes and are used by some of the top professional riders in a variety of riding disciplines. Shimano value the world we live in and have a strong environmental ethic, ensuring that the parts you buy have had the least impact on the environment. Shimano consistently continue to make the best products for each area of cycling; whether that be Road riding to downhill racing, they know the market better than any other company and as a result make some of the most precise and high quality parts available on the market today. In their 87 plus years of existence Shimano have accumulated a vast knowledge of technology, product development and expertise that serves as the driving force behind their continually evolving product line keeping them firmly placed as the worlds leading Bicycle parts manufacturer.