The SRAM Eagle 90 Transmission Groupset is the most efficient off-road specific mechanical drivetrain that SRAM has ever made. This set includes a crankset, rear derailleur, cassette, chain, and shifter. The SRAM Eagle 90 Transmission DUB Crankset is a forged aluminum crank built for durability, simplicity, and compatibility with modern mountain bikes. It is part of SRAM’s new premier mechanical groupset. Designed around SRAM's 8-bolt T-Type chainring interface, it comes equipped with a stamped steel chainring for maximum strength with an option for a lighter aluminum version. It is available in a wide range of crank lengths from 155mm to 175mm. The crank includes two independently removable composite bashguards for added protection, which are shared with GX and X0 T-Type chainrings. The SRAM Eagle 70 Transmission T-Type Flattop Chain brings the same T-Type Flattop technology found in SRAM’s top-tier Eagle Transmission drivetrains, now in a polished steel finish, built for durability. Designed for smooth, precise shifting underload, it features a solid pin construction and a refined Flattop profile that enhances both performance and aesthetics. With full compatibility across Eagle T-Type systems and E-MTB approval, this 126-link chain comes with a PowerLock for easy installation, making it a dependable choice for riders who want lasting performance in demanding conditions. The SRAM XS-1270 T-Type Cassette provides the same proven technology found in SRAM’s top-tier Transmission cassettes with a focus on value and durability. Featuring a full 10-52T range on a traditional splined driver body, it supports 55mm chainlines for improved chain angles, longer component life, and more precise shifting. The black nickel chrome finish adds a sleek, durable look, while the replaceable 8-12 gear cluster offers practical serviceability. X-SYNC technology is included for flawless inboard and outboard shifting under load. The SRAM Eagle 90 Transmission Rear Derailleur brings the precision and reliability of T-Type shifting to a cable-actuated setup. The cage is made with lightweight and durable aluminum. With a new cable actuation ratio tuned specifically for crisp, consistent shifts, it delivers a high-performance experience backed by the same robust Full Mount design used across the Transmission range. The derailleur features replaceable skid plates, a serviceable outer parallelogram link, and rebuildable cage options for long-term durability. A new Drag Spring damper adds chain control. The SRAM Eagle 90 Transmission Shifter provides a high-performance mechanical shifting experience with modern ergonomics and refined control. Featuring a new T-Type cable actuation ratio, it offers the most precise and consistent shifts SRAM has ever achieved in a mechanical system. A revised lever position enhances grip and responsiveness, making it a great choice for MTB riders. The double-click downshift option maintains excellent shift performance under load on pedal-specific bikes. The textured aluminum shift lever adds ergonomics and friction for confident shifts. When paired with Stealth Brakes, the shared design language creates a clean, integrated cockpit. The SRAM Eagle 90 Transmission Groupset is an evolution in mechanical shifting.
