DESCRIPTION Upgrade Shimano 11-spd rear derailleur system SLX (M7000), XT(M8000), XTR(M9000), and only change 52T or 50T with 16T sprocket to reach 473% (52T) and 455% (50T) super mega range gear ratio on climbing and descending. 52T or 50T sprockets will be helpful, instead of spending too much money for changing lots of parts, the 52T/50T sprocket will help to get rid of the troubles. The 16T sprocket replaces 15T and 17T to make well-shifting in the cassette progression. The new combination reaches the super mega range gear ratio for optimum performance. ———————————————————————————————————————- Material: AL7075 full CNC machined (52T/50T/Spacer), Chrome Steel (16T) Cassette progression: 11-13-16-19-21-24-28-32-37-40-spacer-50T 11-13-16-19-21-24-28-32-37-42-spacer-50T or 52T 11-13-16-19-21-24-28-32-37-46-spacer-52T Sprocket weight: 50T (122g), 52T (126g), 16T (19.5g), Spacer (2.5g) Compatibility: For XT/XTR 11-40/42T cassette. 11 speeds only Kit includes: 52T or 50T, 16T and Spacer Color: Black (52T or 50T), CP (16T) Please visit our website at http://www.ecomtb.com.my OR https://shopee.com.my/eco_mtb ** There is 1-3cm errors due to manual measurement. Please kindly understand. ** Actual product colour may slightly vary due to photographic lighting sources or your monitor settings. ** WE DO NOT DO COD ** ONLINE ONLY ** We support original products only. ** PRICE INDICATED IS ALREADY BEST PRICE, EXCLUDE COURIER