Pure Mechanical Precision SRAM delivered the dream of the perfect mountain bike shift, and now that dream is mechanical. Eagle 70 Transmission delivers incredible mechanical shifting performance, responding instantly to every pedal stroke, so the harder you push, the smoother it shifts. No derailleur hanger. No adjustment screws. No batteries to keep charged. Just pure durability, reliability, and affordability. Unrivaled Durability Built tough from the ground up, the Eagle 70 derailleur mounts directly to the frame using our ultra-strong Full Mount interface. It's so strong, you can stand on it. Paired with a tool-grade steel chainring and T-Type tooth profiles for unmatched chain retention and longevity, this drivetrain is designed to withstand anything the trail throws at you. Add an optional single or dual bash guard for even more protection and extended ride life. Effortless Maintenance Less time wrenching, more time riding. Eagle 70 is low maintenance and easy to care for - just keep it clean, lube the chain, and swap cables when needed. That’s it. No headaches, no complications, just consistent, worry-free performance. Shift Without Limits Whether you're hammering up a climb or pushing the watts on an E-MTB, Eagle 70 shifts without hesitation, even under full power. With X-Sync tooth profiles and 44 precisely designed shifting points on T-Type cassettes, you'll experience the smoothest, most precise mechanical shifting under load ever. The Perfect Mechanical Cockpit Nothing beats the satisfying, tactile “click” of a perfect shift. Eagle 70’s refined ergonomics and streamlined stealth-mounted shifter pair seamlessly with SRAM brakes and dropper levers for a clean, integrated look that enhances your ride experience. Eagle 70 is more than just a drivetrain, it’s mechanical shifting, redefined. Eagle 70 Transmission Upgrade Kit Features: Includes: Shifter (22.2mm clamp), rear derailleur, cassette (HG or XD), and chain Speeds: 12-speed SRAM DUB Bottom Bracket Sold Separately Specs: Derailleur Shifter XS-1275 Cassette XS-1270 Cassette Eagle 70 Chain Derailleur Rear Speeds: 12-Speed Cable Pull Ratio: T-Type Actuation Max Tooth: 52t Cage Material: Steel Drive Config: 1x Shift Technology: T-Type Actuation Chain Technology: T-Type Weight: 415 Grams Shifter Rear Speeds: 12-Speed Clicks: Double Cable Pull Ratio: T-Type Actuation Cable Length: 2200mm Shifter Type: Trigger Clamp: Included Weight: 145 Grams Model ID: SL-70-A1 XS-1275 Cassette Freehub Interface: SRAM XD Gearing: 10-52t Cog Finish: Black, Silver Technology: XS Cog Sizes: 10-52t:10,12,14,16,18,21,24,28,32,38,44,52 Weight: 445 grams XS-1270 Cassette Freehub Interface: Shimano HG Gearing: 10-52t Cog Finish: Black, Silver Technology: XS Cog Sizes: 10-52t:10,12,14,16,18,21,24,28,32,38,44,52 Weight: 565 grams Eagle 70 T-Type Chain Rear Speeds: 12-Speed Chain Length: 126 links Outer Link Finish: Polished Outer Link Color: Grey Inner Link Finish: Chrome Hardened Inner Link Color: Black Chain Connector: PowerLock 12s T-Type Pin Variant: Solid Pin Weight: 270 grams Model ID: CN-TTYP-70-A1