Rival XPLR Power Arm/Spindle Rear Derailleurs Road SRAM Model ID: FC-RED-P-E1

SRAM Model ID: FC-RED-P-E1

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All-new design with removable and replaceable thread-mount chainrings

Lightweight

Updated Compression Ring Design Further Enhances ''Carbon Friendly''Uses by Evenly Distributing Clamping Forces on the Steerer

Rival XPLR Power Arm/Spindle Rear Derailleurs Road SRAM Model ID: FC-RED-P-E1Upgrade your existing Rival XPLR (Wide) 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 Attributes Chainline 47. 5mm Connectivity ANT+, BT LE Crank Spindle Diameter 28. 99mm Interface DUB Crankset Material