Quarq DFOUR DUB Road Power Meter Crankset. Quarq's DFOUR DUB Road Power Meter Crankset pairs directly with your Dura-Ace R9100 chainrings to take your training and racing to the next level of precision. Quarq continues to push the accuracy standards of their meters, and the standout feature is the power reading accuracy within +/-1. 5%, allowing you to train and race to the numbers and see how you're progressing. Quarq also eases set-up before each ride with their MagicZero feature for an automatic calibration procedure.Once out in the sun or battling months of cold winter, the meter also compensates for changing temperatures for ride-long, consistent readings. The DFour is IPX7 waterproof rated and operates for up to 200 hours on a single CR2032 battery. The meter is paired with Quarq's carbon crank arms in various lengths and requires SRAM's DUB bottom bracket to fit your bike.
We get people who get outside - plain and simple. Backcountry began in 1996 with two childhood friends and a stack of avalanche beacons in an apartment in Park City, Utah. Our roots were humble, but our vision was clear: to provide the best outdoor gear to connect people with their passions.
At the dawn of e-commerce, we set the precedent that gear should be accessible from anywhere by anyone. Over two decades later, we still call the trails of the Wasatch Mountains in Park City home. And from the West to the East, from mountains to oceans, wherever you are in nature, so are we. We will not accept the return of gear, bikes, or bike frames damaged due to negligence or abuse.
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Bikes, rocket boxes, & car racks - No PO Boxes. It's our goal to answer all of your questions and to help you find the best products to meet your needs. This item is in the category "Sporting Goods\Cycling\Bicycle Electronics\Power Meters". The seller is "backcountry" and is located in this country: US.
This item can be shipped to United States.