The pinnacle of cross-country cycling performance can be found in the SRAM XX SL T-Type Eagle AXS Transmission Groupset. Built to serve the most demanding rider's needs in the lightest weight configuration, XX SL Transmission is the evolution of SRAM's World Champion, World Cup winning XX Eagle AXS. The XX Eagle AXS Transmission power meter crankset utilizes SRAM's World stage proven XX crankarm with a subtly integrated power meter to record and deliver live, accurate power readings to your head unit. They achieve this by utilizing what they call “DUB-PWR” – a unique design that elegantly houses Quarq's reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it's subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, no-fuss data delivery giving you an edge over the competition.