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Quarq
SRAM Red DZero Power Meter Crankset Package - BB30

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Red power.

Quarq took the liberty of updating its powermeter spider, and we've take the liberty of pairing it with an appropriate pair of chainrings. The BB30-compatible Quarq SRAM Red DZero Power Meter Crankset Package is the brand's definitive road race model, so you'll be seeing it on bikes throughout the peloton for the foreseeable future. We added a pair of SRAM's top-tier chainrings, eliminating the extra step of finding and mounting your own.


The Red DZero features the same Exogram carbon crank arms and graphical treatment as the standard Red crank—the only difference is the spider. It's alloy, and it incorporates five strategically arrayed strain gauges in order to measure the Newton meters you're throwing into the pedals. It's also still got the same claimed accuracy of +/-1.5%, so its numbers are 0.5% more accurate than most meters, but the new design requires less correction in order to maintain accuracy in drastic temperature changes. Fewer corrections mean the latest SRAM Red power meter model also better rations battery life than the previous generations, though when the battery does go out, you can still change it without tools or having to ship the whole thing to the manufacturer.


The Red DZero system'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 DZero 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.


The DZero with SRAM Red branding also hosts Quarq's Power Balance and Omnical features, which record total output and output for either leg individually (Power Balance) and let you swap chainrings without recalibrating or negatively impacting accuracy (Omnical). As with previous Quarq models, the DZero communicates to your head unit via ANT+ wireless, but Quarq also adds Bluetooth to this generation. Up till now, we've always tempered the obligatory head unit-compatibility statement by writing that your current computer is likely already compatible with the power meter; now, we can just state outright that it is compatible.


We recognize that there is value in cycling components that can stand up to the elements we often encounter throughout the course of a year of training, but Quarq demonstrates its penchant for being overly thorough by ensuring that the unit's internals can handle comically extreme conditions. The system is waterproof for 30 minutes while submerged under one meter of water, a feature that will come in handy on days you take your bike on the swim leg, too.


Since the DZero is effectively a catch-all for almost every bit of tech Quarq has thrown at the power meter problem over the past decade, it includes the AxCad accelerometer, which provides cadence information without any additional sensors or magnets. The DZero is also compatible with training software suites including Training Peaks WKO+, Training Peaks, Golden Cheetah, and Strava. Unlike previous versions, the DZero's Bluetooth compatibility lets it sync with the Qalvin BLE app to easily tune, tweak, and set zero offsets.


Details

  • A powermeter crankset with peloton pedigree
  • Improved precision from redesigned strain gauge circuits
  • Provides power for right and left legs separately
  • Red-branded carbon crank arms for uncompromising stiffness
  • Broadcasts via ANT+ and Bluetooth protocols
  • Requires less correction for better data and longer battery life
  • Battery can be changed by home mechanics without tools
  • Compatible with BB30 bottom brackets and adapters
  • Item #QRQ001B
Arm Material
Exogram hollow carbon fiber
Arm Length
170mm, 172.5mm, 175mm
Chainring Sizes
50/34t, 52/36t
Bolt Circle Diameter
[50/34t] 110mm, [52/36t] 130mm
Bolts
4
Rings
2
BB Type
BB30
Spindle
30mm
Compatible Components
SRAM Red 10-speed, SRAM Red 11-speed, SRAM Red and Force Yaw front derailleur
Recommended Use
cycling
Manufacturer Warranty
2 years

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