SRAM Power Meter Spider AXS E1 For Threaded Mount Chainrings - Red (Including 8 Bolts And Thread Back Up Pin For Chainring):

Information

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.

Thread Mount design is light, stiff and accurate, and available in 38T-46T

SPECIFICATIONS Bolt Circle Diameter (BCD)Thread MountBB Spindle InterfaceDUBPower Meter TypeAnt USB