Red E1 Power Meter Spider AXS For Threaded Mount Chainrings

When you need the absolute best from your training data, the accuracy and reliability of the RED XPLR AXS Power Meter is the way to go. The spider design uses a proprietary thread-on chainring mount system which allows us to reduce weight and increase stiffness without compromising the ability to swap rings. A dual sided power measurement system, it’s accurate to +/-1.5% even as weather conditions change, and boasts unbeatable battery life. SPECIFICATIONS Bolt Circle Diameter (BCD) Thread Mount BB Spindle Interface DUB Power Meter Type Ant USB