Sram Red Axs E1 Dub Direct Mount With Power Meter

It's the best tool to help you reach your best. Our lightest, stiffest, and most accurate integrated power meter just got lighter with a new carbon crankarm construction. Our power meter is accurate to +/-1.5% and isn't affected by temperature changes, and the direct mount X-SYNC chainring is aero and incredibly long-lasting. Plus we're offering more crank arm lengths than ever before to ensure this crank works for you.Features:- Power meter is fully integrated into the chainring for lighter weight and greater accuracy- Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride- Measures right and left leg power balance- Ultra-light hollow carbon fiber crankarms are 29 g lighter than previous generation- DUB bottom bracket adds durability and simplicitySpecifications:- Speeds: 12- BB Compatibility: All SRAM Road DUB BBs, except Ai- Chainring Size: 50T- Crank arm length: 170mm- Chainline: 45.0mm- BB Spindle Interface: DUB- Chainring material: Aluminum- Bolt Circle Diameter (BCD): Direct Mount (DM)- Crank arm material: Carbon- Power meter: Yes- Power Meter Type: Spider