SRAM RED AXS E1 1x Aero Power Meter Chainring 12 Speed Advance Armband Adjustment Range 190~310mm

Armband Adjustment Range    190~310mm

Science suggest an intake of 3 mg of caffeine per kilogram body mass

Requires new Flattop™ Powerlock™

Highly efficient COB LED with max 20 LED lumens

Built for 31

SRAM RED AXS E1 1x Aero Power Meter Chainring 12 Speed Advance Armband Adjustment Range 190~310mmEngineered for riders chasing every possible aerodynamic and performance advantage, the SRAM RED E1 AXS 1x Aero Power Meter Chainring combines an aero optimised direct mount chainring with SRAMs latest Quarq power meter technology into one lightweight, race ready unit. Whether youre racing time trials, triathlon, criteriums or building the ultimate aero road bike, it delivers uncompromising power accuracy, aerodynamic efficiency and seamless AXS