A lighter, more accurate power meter completely integrated with the philosophy and performance of SRAM RED. Advances in technology and performance matched by unrivaled ease-of-use. The sleek new geometry reduces system weight and delivers clearance for oversize frames and aerodynamic chainrings. The only visible power component is the low profile, all aluminum battery case. New stress flow lifts accuracy to +/- 1.5% and makes power measurement independent from chainrings selection. Integrated electronics minimize interconnections and reduce exposure to the elements, bringing unmatched durability and reliability.