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Equipment > Components > Power Meters > Power Meter - Cranksets

Description

The SRAM Rival XPLR AXS E1 Power Meter is engineered for riders who measure performance not just in watts, but in the miles of discovery those watts make possible. Designed specifically for the mixed-surface demands of gravel, all-road, and endurance exploration, it brings precision power measurement, rugged reliability, and wireless simplicity to the heart of SRAM’s XPLR ecosystem. From high-tempo training to multi-day adventures, the Rival XPLR Power Meter transforms how riders understand and refine their effort — one accurate, data-driven ride at a time.

Built on the proven Quarq D-Zero power platform, the Rival XPLR AXS E1 measures total output from both legs via integrated spider-based strain gauges. This placement ensures consistent, dual-sided accuracy — ±1.5 % in all conditions — without interference from pedal balance or drivetrain friction. The temperature-compensated system maintains precision whether you’re climbing through alpine cold or hammering across sun-baked gravel. Encased within a fully sealed housing, it’s built to handle mud, rain, dust, and vibration with IPX7 waterproof certification. Every watt recorded is true to your effort, free from drift, lag, or compromise.

The direct-mount design eliminates unnecessary interfaces, reducing weight while improving stiffness and alignment between chainring and crank spider. The system pairs with 1× XPLR drivetrains, optimized for chainrings between 38 T and 46 T, offering a gearing range ideal for gravel speed and climbing efficiency. The narrow-wide tooth profile enhances chain security over rough surfaces, while the precisely machined tooth geometry ensures silent, friction-free engagement. Each power meter unit comes pre-calibrated from SRAM’s Colorado facility, ensuring laboratory-grade accuracy the moment it’s installed.... Read More

Features

  • Quarq D-Zero power platform delivers ±1.5 % accuracy in all conditions
  • Spider-based dual-leg measurement unaffected by drivetrain or pedal imbalance
  • Temperature-compensated electronics ensure stability across extreme environments
  • IPX7 waterproof and dust-sealed for consistent performance in rough terrain
  • Direct-mount design improves stiffness and reduces overall system weight
  • Compatible with 1× SRAM XPLR drivetrains using 38 T–46 T chainrings
  • Narrow-wide chainring tooth profile provides secure retention on mixed surfaces
  • Wireless AXS connectivity enables instant pairing, updates, and calibration
  • Supports both ANT+ and Bluetooth Smart data transmission
  • CR2032 battery delivers 200 + hours of ride time with tool-free replacement
  • Forged aluminum crankarms offer stiffness, durability, and wide Q-factor compatibility
  • DUB spindle interface fits multiple frame standards for road and gravel bikes
  • Seamless integration with AXS app for analytics, firmware, and configuration
  • Ideal for gravel, all-road, and endurance training in any climate or terrain
  • Engineered by SRAM and Quarq for reliable, real-world power measurement