SRAM GX Eagle lineups have long been the go-to drivetrain for dedicated and budget-minded riders, and it's now available within the new Transmission family! This system retains its unwavering commitment to performance and affordability while incorporating modern upgrades for the next generation of bikes. The GX Eagle Transmission derailleur offers the same exceptional precision and responsiveness as other derailleurs in the Transmission lineup, with the added benefits of removable skid plates for enhanced protection and easier maintenance. Thanks to the innovative combination of X-SYNC technology and cassette mapping, the GX cassette enables seamless shifting, especially under heavy load, ensuring smooth gear transitions during the most intense power outputs. The GX Eagle Transmission (T-Type) chain is SRAM's toughest chain yet. Meticulously engineered to optimize the Eagle Transmission system, this brand-new T-Type design boasts a unique flat top and solid pins, delivering unparalleled strength and durability to handle the increased torque loads of E-MTBs. This upgrade kit provides all the components needed to elevate your drivetrain to the latest technology, while still allowing you to use your existing cranks or choose an aftermarket option. Note: A compatible T-Type chainring is required. Battery and USB-C charger are included (USB-C cord is not included with the charger) GX Eagle Transmission AXS Upgrade Kit Specs: Derailleur Controller XD Cassette HG Cassette Chain Derailleur Model: GX Eagle Transmission Model ID: RD-GX-E-B1 Shift Technology: Wireless Communication Protocol: AXS Max Tooth: 52t Cage Material: Steel Drive Config: 1x Chain Technology: T-Type Weight: 470 Grams Controller Model: AXS Pod Model ID: EC-AXS-POD-D1 Controller Type: Wireless Orientation: Left, Right Clamp: Discrete XD Cassette Model: XS-1275 Model ID: CS-XS-1275-A1 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 HG Cassette Model: XS-1270 Model ID: CS-XS-1270-A1 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 Chain Model: GX Eagle Transmission Flattop Model ID: CN-TTYP-GX-A1 Outer Link Finish: Nickel Outer Link Color: Silver Inner Link Finish: Chrome Hardened Inner Link Color: Silver Chain Connector: PowerLock 12s T-Type Chain Length: 126 links Pin Variant: Solid Pin Weight: 285 grams