– Upgrade your existing Force 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








