SRAM Eagle 90 T-Type 12-Speed Rear Derailleur accessories-bags-hip-bags special gear tooth profile for

special gear tooth profile for improved chain retention

4 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately)

Ergonomic with thumb grip

Optimized hood shape fits a wider range of hand sizes

G-Spec Ratchet Clutch

SRAM Eagle 90 T-Type 12-Speed Rear Derailleur accessories-bags-hip-bags special gear tooth profile forFull Mount Design (UDH frame required) T Type compatibility Most robust mechanical derailleur Replaceable skid plates, outer and inner parallelogram link, cage or cage assembly The most rebuildable derailleur in the Eagle Transmission Ecosystem Attributes Maximum Cog 52T Minimum Cog 10T Misc Primary Color Black RD Capacity 42T Speed 12