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Though it normally ships as just a pair of crank arms equipped with Quarq strain gauges, we've taken the liberty of adding a pair of Red X-Glide chainrings to the GXP SRAM Red 22 Power Meter Crankset Package. The result is a match made in watt-measuring heaven: the sharp shifting of SRAM's X-Glide rings, the stiff, lightweight efficiency of Exogram Hollow carbon crank arms, and — of course — Quarq's industry-leading, ANT+ compatible power meter system. With a claimed accuracy of +/- 1.5% — 0.5% better than most meters on the market — the five strain gauges allocated strategically throughout the crank arms keep you informed while you're in the saddle, making this package the ultimate training partner.
In addition to that accuracy, the SRAM Exogram hollow carbon construction, and the usual power meter functionality, there are two key features worth calling out: Power Balance and the 10k active temperature compensation. Power Balance records the power you're generating in both crank arms separately, so you can compare the two and identify pedal stroke weaknesses to target for improvement. 10k is named after the 10,000 data points Quarq collected to establish a self-correcting schedule that accounts for temperature changes and minimize drift, which eliminates the need for occasional mid-race zeroings to let you focus on turning the cranks, not babysitting them.
The Red X-Glide Chainrings feature a stiffer chassis and realigned pin pattern that increases the number of engagement points. When the rings are used in conjunction with a SRAM Red YAW front derailleur, those improvements mean that the chain ramps up to the big ring with a speed bordering on personal injury. The unit is finished with standard power meter features: it measures cadence, is waterproof, and features an LED light power display. When this gets low, the battery can easily be replaced by any home mechanic. After a ride, the data's compatibility with myriad training software programs means you can upload it to Training Peaks, Golden Cheetah, and Strava.
- Item #QRQ000N