- Spindle-based unit measures left side power to calculate total watts
- Long battery life (400+ hours) to power a season of rides
- User replaceable AAA lithium battery
- Lightweight (less than 40g heavier than standard crankset)
- Crisp and accurate front shifts
- Integrated one-piece chainrings
- SRAM Model ID: FC-RIV-P-E1
Specs
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