Accelerate your progress with the new SRAM Force AXS E1 Powermeter Upgrade. This new power meter is integrated into the full carbon crank arm, giving you a lightweight, accurate, and reliable power meter that is barely noticeable. This includes only the left crank arm, excluding the bottom bracket/right crank arm/chainring. Proven Quarq technology, reliable and accurate. Long battery life. Waterproof IPX7 up to 1 meter for 30 minutes. Excludes right crank arm/bottom bracket/chainring. Crank length 172.5mm. The Sram Force PM E1 Crank/Powermeter accelerates progress with light, accurate and reliable power measurement for Force AXS. Proven Quarq reliability and accuracy. Long battery life for a full season of riding. Waterproof (IPX7) up to 1 meter depth for 30 minutes. Spindle-based unit measures power on the left side to calculate total wattage. Direct Mount (DM). Sram Item number: 740143 EAN code: 710845926143 Supplier number: 00.3018.402.009 Retail packaging: Yes