The Advent MX H-Series cassette is the smoothest shifting, most durable cassette that microSHIFT has ever made. That all starts with SpeedRamp, a series of discrete shifting ramps that move the chain quickly, quietly, and precisely under load. With separate ramps for moving the chain up and down the cassette, Advent MX delivers fast, quiet shifts so you can concentrate on enjoying the ride.SpeedRamp technology delivers faster, quieter shiftingReplaceable small cogs extend service life2 layered ED black finish provides additional corrosion resistanceAluminum 50t cog offers valuable weight savingsCompatible with Advent MX OnlyCompatible with standard HG cassette hub bodiesItem SpecificationsCassette Body TypeShimano HGCogs11-13-15-18-21-24-28-32-36-42-50ColorBlackDefined ColorBlackDrivetrain Speeds11Range11-50Weight650 microSHIFT Advent MX H-Series Cassette Cassettes EAN: 4710495438719