A light and stiff Direct Mount chainring with accurate Quarq power metering, elegantly hidden within the DUB spindle, discreetly gathering the data you need to progress.
The shaft-mounted DUB-PWR unit measures the left side and calculates total watts.
Long battery life (400+ hours) to power an entire season of riding. User changeable AAA lithium batteries.
The DUB bottom bracket adds durability and simplicity. Waterproof (IPX7).
Compatible with 47.5mm chainline for 135mm, 142mm and Boost hubs. Compatible with the entire Sram Road Wide DUB BB range, except Ai.