You've been running with power in your cranks for a bit, but craving a drivetrain change. This can be a little tough to stomach, especially when you've been rolling with an expensive power meter that limits compatibility. If your setup involves a Quarq DZero DUB crankset, and Shimano's newest Dura Ace is catching your eye, don't worry, you don't need to lose out on your whole crankset, or compromise your drivetrain desires, with the Quarq DFour DUB Power Meter Spider you can bridge the gap. This spider enables you to keep running your DUB cranks with Shimano's Dura Ace 9100 drivetrains, so you don't have to make concessions anywhere. The spider features Quarq's new design, which requires less correction in order to maintain accuracy in drastic temperature changes. Fewer corrections mean the DFour also better rations battery life than Quarq's previous power meter models, though when the battery does go out, you can still change it without tools or having to ship the whole thing to the manufacturer. It still incorporates five strain gauges strategically placed throughout the spider, and it's also still got the same claimed accuracy of +/- 1. 5%, so its numbers are 0. 5% more accurate than most meters. DFour's accuracy is further boosted by the return of Quarq's 10k dynamic temperature compensation technology, which alleviates the need for constant, mid-race zeroings in variable conditions. Even if it's just coasting for a few seconds or toggling through your head unit to the proper option, it can still be the difference between winning and losing. It's also obnoxious as hell. The DFour is equipped with an auto-adjust schedule based on a constellation of around 10,000 data points that chart how the unit responds to temperatures ranging from zero to 130 degrees Fahrenheit. This lets the power meter figure out the atmospheric details for you with minimal drift, so you can focus on turning the crank, not babysitting it. Power Balance and Omnical are two additional ...
Price: $406.96 from Backcountry
| Merchant | Price | |
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| $406.96 | Visit Store |
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...
"What Our Gearhead® Experts Are Saying: ""Small details make a big difference, and these Quarq Battery Colored Decals let me add a personal flair to my power meter. They're easy to apply, durable, and available in multiple colors, making it simple to...
The time has come for you to stop guessing your energy output, and start coming in with cold, hard numbers to provide the data you need to improve. Quarq's DUB Crank Arms enable you to make the switch from not-so-smart cranks to all of the data you could...