SRAM Apex AXS Crank Arm and Power Meter Spindle Assembly

This system measures power directly at the spindle, which is generally more protected from impacts and debris than pedal-based units. Because it captures left-leg output to calculate total wattage, it offers a discreet, integrated solution that doesn't require changing your pedals or cleats.

Yes, it is designed for seamless integration with all SRAM Road WIDE DUB bottom bracket systems. Please note that it is not compatible with Ai (Asymmetric Integration) frames.

It is straightforward. The unit runs on a standard AAA lithium battery, which is easily accessible and provides over 400 hours of ride time. You won't need specialized tools to perform a battery swap.

Absolutely. The assembly features an IPX7 waterproof rating, meaning it is fully sealed against water ingress during heavy rain, stream crossings, or muddy gravel rides.

No, this product includes the crank arm and the power meter spindle assembly only. It utilizes a direct mount interface, so you will need to ensure your existing or new chainrings are compatible with the SRAM direct mount standard.

Crank arm length is largely a matter of personal preference and bike fit, but generally, shorter cranks like 160mm or 165mm can help with hip clearance and cadence, while longer 172.5mm or 175mm arms are traditional for leverage. If you are unsure, check the length currently installed on your bike to maintain your existing fit.