Relic 40T MTB Sprocket Kit for Shimano 10 Spd - 11-34T Cassette - Blue

To upgrade Shimano 10-spd sprocket gear ratio with Relic 40T sprockets, which provide more cassette range to be compatible with Shimano 10-speed drivetrain, sprocket 11-34T, 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 T6 CNC machined (40T) / Gold Steel (16T) Cassette progression: 11-13-16-19-21-23-26-30-34-40T Sprocket weight: 72g Compatibility: 11-36T cassette. For 10 speeds only Color: Blue (40T) / Gold (16T) Made in Taiwan !