SRAM, Force XPLR PM, Left Arm with Power Meter Spindle, Speed: 12/13, Spindle: 28.99mm, DUB, 165mm, Black, Road

• Upgrade your existing Force XPLR (Wide) E1 crank with a spindle based power meter • Proven Quarq reliability and accuracy • Long battery life to power a season of rides • Waterproof (IPX7) waterproof to 1 meter for 30 minutes) • Spindle-based unit measures left side power to calculate total watts • SRAM Model ID: PM-FRC-ASSY-E1