Take a quick look at the new X-DOME Eagle cassette. The last dangling shred of an argument in favor of a mountain bike front derailleur is now officially dead

• SRAM’s cassette manufacturing technology provides the greatest durability and lightest weight
• All-new shifting features create a smoother, quieter system with enhanced inboard and outboard shift performance
• XD driver body compatible
• Technology: X-DOME, XD driver compatible, X-Glide 2
• Machined cromoly 11t cog cluster with aluminum largest cog
• Speeds: 12
• Recommended chain: Eagle chain
• Gear Ratios: choose; 10-50t, or 10-52t
• Cogs: 10-12-14-16-18-21-24-28-32-36-42-50 (10-50t); 10-12-14-16-18-21-24-28-32-36-42-52 (10-52t)