Sram Red E1 Power Meter DUB 175x46/33 DUB crankset black

Sram`s lightest stiffest and most accurate integrated power meter and chainring combo just got lighter with a new carbon crankarm construction - 29 grams lighter than previous generation. Power readings are accurate within +/-1.5% and aren’t affected by climate conditions during a ride. X-Range gearing technology gives you more range and a smoother gear progression so you’re always in the right gear. Power meter is fully integrated into the chainring for lighter weight. 50/37T 48/35T and 46/33T chainring combos available. DUB bottom bracket adds durability and simplicity. Measures right and left leg power balance. Crisp and accurate front shifts