NOT the M8

We've seen it all

Fit Type: It is a Female specific modern lifestyle performance fit

Gauge type: Digital

Do not tumble dry

SRAM Rival AXS E1 Left Arm and Power Meter Spindle - 68-73mm and BB86-92 - 28.99mm DUB - SRAM Direct Mount - 172.5mm - Grey PDP|PLP|Rail Material NOT the M8Invisible technology that will help you get to the finish line faster? Yes please. Their Rival power meter unit is entirely contained within the DUB spindle for effortless integration with any bike. Just install, pair, and ride. Features Spindle based unit measures left side power to calculate total watts Long battery life (400+ hours) to power a season of rides User replaceable lithium AAA battery DUB bottom bracket adds durability and simplicity