The SRAM XS-1275 GX Eagle T-Type 12-Speed Cassette is a critical component in achieving Eagle Transmission’s industry-leading shifting performance under load. With its full X-SYNC tooth profile, this cassette improves precision the harder you pedal, offering seamless inboard and outboard shifts. It features a massive 520% gear range, optimized with redesigned low-end steps—moving from 38T to 44T before reaching the 52T cog—to maintain better cadence on climbs. Built around a 55mm chainline, it delivers a straighter chain path for reduced friction, enhanced durability, and consistent performance across the entire range.

The XS-1275 is engineered for strength and efficiency, using a Pindome structure for cogs 10–28 and a single-piece mini-cluster for cogs 32–52, ensuring a solid balance between weight, durability, and cost. With its durable nickel-plated finish, this cassette resists corrosion and runs quieter over time. A clearly marked Setup Cog makes installation straightforward and repeatable, while its compatibility with the widely used XD driver body ensures broad drivetrain integration. T-Type chain compatibility and Full Mount derailleur pairing round out a cassette built for serious trail performance with long-term reliability in mind.