SRAM released their first mountain bike component—a thumbshifter—in 1987. The 1987 Collection Eagle Transmission AXS groupset commemorates that debut with a silver-and-black colorway that references the original aesthetic while delivering current Transmission AXS technology. Same internals as the standard Eagle Transmission groupset, different finish.

The T-Type rear derailleur mounts directly to the frame's Universal Derailleur Hanger, which positions the derailleur as a structural extension of the dropout rather than a bolt-on accessory. This eliminates traditional hanger flex and alignment issues—the derailleur cage maintains consistent position relative to the cassette under load. The Infinity driver mechanism uses SRAM's proprietary cassette engagement system, where the rear derailleur pulls double duty as the cassette retention mechanism instead of a separate lockring.

Full Mount crankarms attach with a single self-extracting bolt and position chainring teeth closer to the chainstay for improved chainline. The 165mm, 170mm, and 175mm length options cover most rider preferences, with 32T and 34T steel chainring options included in different kit configurations. AXS wireless shifting handles gear changes through the controller pod, which mounts to standard handlebar clamp positions.... Read More