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SRAM Rival QUARQ Crank ARM Wide 170mm Black Dub Left ARM Power Meter/Spindle
Special Features
- Wide chainline design to fit the biggest gravel tires
- DUB-PWR spindle-based unit measures left side power to calculate total watts
- An elegant integrated design
- Proven Quarq reliability and accuracy
- Long battery life (400+ hours) to power a season of rides
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