The SRAM Force XG-1270 Cassette 12-Speed E1 is a road cassette with X-Range gearing for smooth shifting. It uses Mini Cluster construction with 440C steel cogs and stainless steel pins for durability. Available in 10-28T, 10-30T, 10-33T, or 10-36T ranges, the 10T cog supports sprinting, while the 36T (in 10-36T) aids climbing. It fits XDR freehub bodies and works with SRAM Force AXS, RED, or compatible 12-speed systems. Weight is ~250-300g depending on size. It's great for road, gravel, or cyclocross bikes.
Key Features:
X-Range Gearing: Wider range and closer ratios for efficient pedaling
Mini Cluster Design: CNC-machined small cogs with pinned larger ones for light weight
10T Cog: High gear for sprinting
36T Cog (10-36T): Low gear for climbing
12-Speed Compatibility: Optimized for SRAM AXS electronic shifting