Sram – Red 1x D1 Quarq Road Powermeter DUB 48T Aero (BB not included)

In certain disciplines, the single-ring drivetrain reigns supreme. Championing simplicity, strength and durability, the SRAM RED 1 AXS power meter meets the demands of triathletes, time trialists and cyclocross racers.




  • Single-ring drivetrain simplifies functionality.
  • 48 and 50t variants have fully integrated power into a direct mount aero chainring.
  • 36-46t variants have spider-based power.
  • Chainrings can be easily changed without requiring recalibration of the power meter.
  • 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.
  • SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control.
  • Laser-etched chainring finish is more durable.
  • DUB bottom bracket adds durability and simplicity.
  • Non-aero chainrings can be installed with a single tool, making gearing changes a breeze.
  • Speeds:12.
  • Crank arm length:165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm.
  • BB Compatibility: All SRAM Road DUB BBs.
  • Chainring Size:40, 46, 48, 50.
  • Bolt Circle Diameter (BCD): Direct Mount (DM).
  • Chain line: 45.0mm. BB Spindle Interface: DUB. Chainring material: Aluminium.
  • Guard: No Guard
  • Crank arm material: Carbon
  • Colour (Crank arm): Natural carbon Power Meter Type: ANT+ and BLE

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