The trap with SRAM's T-Type chains is assuming any 12-speed Eagle chain will work — it won't. Eagle Transmission is not compatible with previous-generation Eagle components, though Eagle Transmission T-Type chainrings are backward compatible with older Eagle chains; non-T-Type Eagle chainrings will not work with Eagle Transmission chains. If you're running a full T-Type drivetrain — GX, X0, XX, or XX SL Transmission — the GX Eagle Transmission Flattop chain is the entry point into that ecosystem and the direct replacement chain for GX T-Type builds.

The flat-top profile is what separates T-Type from every previous Eagle chain. The GX Eagle Transmission chain is the strongest SRAM has ever made, specifically engineered to optimize Eagle Transmission with an all-new T-Type design featuring a unique flat top, developed specifically for the added torque loads of E-MTB thanks to its solid pins that give it incredible strength. That solid-pin construction is the trade-off versus the hollow-pin XX and XX SL chains — a bit more weight in exchange for the durability numbers that get this chain approved for high-torque e-MTB use.

Durability across the rest of the chain comes from the plating package. Nickel plated outer links with chrome hardened inner links provide corrosion and wear resistance , which matters on a drivetrain that sees mud, grit, and repeated pressure washing across a typical season. The chain ships at 126 links with a PowerLock connector included in the box, so you have everything needed to size and install for most Transmission chainstay lengths.... Read More