Rival Power Arm/Spindle E1
Product # 350926
  • Upgrade your existing Rival E1 crankset with spindle based power
  • Spindle-based unit measures left side power to calculate total watts
  • Long battery life (400+ hours) to power a season of rides
  • User replaceable lithium AAA battery
  • Lightweight (less than 40g heavier than standard crankset)
  • SRAM Model ID: PM-RIV-ASSY-E1
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