SRAM Sram Red D1 Quarq Road Powermeter Dub: Black 172.5mm - 50-37T

Quarq: The SRAM RED AXS power meter breaks with tradition and breaks through to new levels of performance. We reengineered road gearing: reducing front chainring size and adding more range to the rear cassette. We also maintained a 13-tooth delta on all chainring pairs, ensuring precise shifting for any setup. This results in more useful gearing and better shifting across all configurations. Our power meters are also designed with Quarqs premier DZero power measurement technology fully integrated into the crank set. Welcome to the pinnacle of the power meter. THINGS TO REMEMBERX-Range gearing technology gives you more range and a smoother gear progression, so your always in the right gear Integrated power measurement Power meter is fully integrated into the chainring set for lighter weight Power readings are accurate within +/-1. 5% and aren't affected by climate conditions during a ride Power balance measures left and right legs separately Improved front shifting performance for crisp and accurate front shifts Unique chainring shape results in a lighter weight, stiffer, more durable chainring design significantly reduces weight DUB bottom bracket adds durability, simplicity and broad compatibility SPECIFICATIONS Speeds: 12Crank arm length: 170mm, 172. 5mm, 175mm, 177. 5mmBB Compatibility: All SRAM Road DUB Size: 46/33, 48/35, 50/37Bolt Circle Diameter (BCD): Direct Mount (DM)Chain line: 45. 0mmBB Spindle Interface: DUB Chainring material: : No Guard Crank arm material: (Crank arm): Natural carbon Power Meter Type: ANT+ and BLE