SRAM X0 D1 DUB MTB Wide Left Arm and Powermeter Spindle Black, 175mm

What Our Gearhead(R) Experts Are Saying:"Quarq's measurement lives inside the DUB spindle itself, so I'm not adding a bulky spider or a dedicated power arm to my build. It pairs with Flight Attendant automatically, and I've never had to think about the battery."Why We Like ItThe X0 Eagle AXS Transmission powermeter uses SRAM's DUB-PWR design to house Quarq's power measurement technology inside the crank spindle rather than in a dedicated spider or arm, keeping the installation clean and the overall weight low. It measures left-side power to calculate total watts and connects natively with the AXS ecosystem, including Flight Attendant.