SRAM Red AXS E1 Threaded Mount Powermeter Spider

SRAM Red AXS E1 Threaded Mount Powermeter Spider When you need the absolute best from your training data; the accuracy and reliability of the SRAM Red AXS E1 Threaded Mount Powermeter is the way to go. The spider design uses a proprietary thread-on chainring mount system; which allows for reduced weight and increased stiffness without compromising the ability to swap rings. With a dual-sided power measurement system; it’s accurate to +/-1.5% even as weather conditions change; and boasts unbeatable battery life.