When it comes to adventurous riding, a wider gear range is often better. The microSHIFT ADVENT cassette has the low gears to get up and the high gears to get back down. Steps between gears are optimized to give an even spread between shifts, reducing the need for double-shifting to find the right gear.microSHIFT's Wide Enough 11-42T gear range works well for a variety of skill levels and riding conditionsMachined aluminum large cog for reduced weightChromoly cogs are continuously forged for strength and shifting accuracyED black / anodized black surface finishItem SpecificationsCassette Body TypeShimano HGCogs11-13-15-18-21-24-28-34-42ColorBlackDefined ColorBlackDrivetrain Speeds9Range11-42Weight446 microSHIFT ADVENT Cassette Cassettes UPC: 657993205105