Sram:

Accurate, reliable power measurement is practically a requirement these days, and the Apex AXS crankarm power meter upgrade is the easiest way to get the numbers you need. With the tech hidden inside the DUB spindle, it fits almost any bike while remaining stealthy.

FEATURES

• DUB-PWR spindle-based unit measures left side power to calculate total watts
• Proven Quarq reliability and accuracy
• Long battery life (400+ hours) to power a season of rides
• User replaceable AAA lithium battery
• DUB bottom bracket adds durability and simplicity
• Waterproof (IPX7 waterproof to 1 meter for 30 minutes)
• Lightweight (less than 40g heavier than standard crankset)

SPECIFICATIONS
Speeds: 12
Crank arm length: 160mm, 165mm, 170mm, 172.5mm, 175mm
BB Compatibility: All SRAM Road WIDE DUB BBs, except Ai
Chainring Size: No rings
Bolt Circle Diameter (BCD): Direct Mount (DM)
Chainline: n/a
BB Spindle Interface: DUB
Chainring material: No rings
Guard: No Guard
Crank arm material: Aluminum
Color (Crank arm): Black
Power Meter Type: Spindle
Hub Spacing Compatibility: n/a