The all new E.13 XCX+ Cassette is a lightweight and durable cassette that offers excellent range. It features: 

• 11 speed 9-39t - 9-11-13-15-17-19-21-24-28-33-39
• 10 steel cogs and 1 aluminum cog provide durability
• Compatible with XD driver freehub
  
• Ultra-stiff cluster keeps power at the wheels
• Weight: 315g
  
• Included: Cassette, grease packet, XDR spacer, manual, bushing, 3mm set screw, 3mm pinch bolt, sticker