E13 TRS 9-46D cassette, 11 speeds.

• A huge 511% gear range, good lightness and a fair price, all without having to buy a new transmission.• The largest sprockets are precision machined from aluminum and attached to a SRAM XD cassette body with a nut. The remaining eight steel sprockets lock into place using a gable levers
• Compatibility: SRAM XD cassette body only
• Sprockets 9-10-12-14-17-20-24-28-33-39-46D