The SRAM Force XG-1270 E1 12-Speed Cassette is built for riders who demand precise shifting and a wide gear range across mixed terrain. With X-Range technology and a 10-tooth starting cog, it delivers smooth gear jumps and the flexibility to match any riding style. Choose from four cassette options to fine-tune your gearing, while the durable construction ensures lasting performance in all conditions.Key Features and Benefits:X-Range gearing with optimised progression: This design offers smaller, more consistent gear steps. It improves cadence control and reduces the need for double shifts, helping you stay in your ideal gear more often.10-tooth starting cog: Starting with a smaller cog allows for a wider total gear range without increasing chainring size. This helps maintain high speed with smaller front chainrings, reducing drivetrain weight and improving efficiency.Five one-tooth jumps on tighter cassettes (10-28T, 10-30T, 10-33T): These closely spaced gears make changes smoother and more predictable. The result is better rhythm on rolling terrain and more control during changes in gradient or effort.Nickel chrome plating on cogs: This finish improves resistance to wear and reduces chain noise. It ensures the cassette stays quieter and performs better over time, especially under load or in poor weather.Full Pin construction using lightweight, strong steel pins: The cog assembly mimics the strength of a solid piece while staying light. This gives the cassette high durability without compromising on weight, which benefits both climbing and acceleration.Compatible with all XDR driver bodies and available in four gearing options (10-28T to 10-36T): This flexibility allows precise tuning of your drivetrain for your terrain and riding goals. Whether racing, training, or exploring, you can build a setup that matches your needs.This cassette is designed for riders who want fine-tuned performance without compromise. Its gear spacing, range, and smooth operation make it ideal for maintaining rhythm on fast roads, tackling steep climbs, or controlling cadence on varied routes. With construction focused on strength and weight, it supports consistent, quiet shifts ride after ride.Upgrade your drivetrain with a cassette built for precision, range, and reliability. Choose the SRAM Force XG-1270 E1 and customise your gearing to match your ride.Specification:Speed (CS) 12Gearing 10-28t, 10-30t, 10-33t, 10-36tCog finish (Cassette) SilverTechnology (Cassette) XGCog sizes 10-28t: 10,11,12,13,14,15,16,17,19,21,24,28; 10-30t: 10,11,12,13,14,15,17,19,21,24,27,30; 10-33t: 10,11,12,13,14,15,17,19,21,24,28,33; 10-36t: 10,11,12,13,15,17,19,21,24,28,32,36Drivetrain Configuration 1x, 2xCassette Size (Max) 28, 30, 33, 36Cassette Size (Min) 10Chain Technology Road Flattop D1, Road Flattop E1Rear Derailleur Mount MTB, Road, Road L, UDH