Road bikes are faster and more capable than ever before

One rear derailleur to rule them all

Garmin Training Center and othersAvailable chain rings:53/39

The shell is made of anodized aluminum

quarq dfour power meter spider 4K Road bikes are faster andDelivery in 5 10 business days (EU) Finance available at checkout with humm by flexifi. Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The DFour DUB was designed specifically for Dura Ace R9100 chainrings. Train using a Quarq power meter without changing your drivetrain. You are working hard, pushing yourself to new heights in some of the toughest conditions. Ride with confidence