Full Pin technology uses eleven lightweight, stamped steel cogs held together with 123 high-strength stainless steel pins. The result: a cassette that's light, durable and equipped with SRAM's super wide 10-42T gear range that's a perfect fit for any ride. The open design aids in mud clearance, giving you cleaner shifting performance and longer component life. Super wide 10-42T gear range is a perfect fit for any ride - Optimized gear steps across entire range - XD driver body creates more stable hub connection