Quarq ELSA RS Power Meter


Quarq’s ELSA RS packs a four-pronged punch to elevate performance for the Shimano® equipped bike and rider. Specially designed to accommodate Shimano’s 4-arm Hollowglide™ chain rings, the spider houses integrated electronics, a CR2032 battery, LED indicator and visible ANT+™ ID. Quarq’s new multipoint, active temperature compensation fine-tunes accuracy and consistency, making this our most exact power meter to date.


  • 10K - active temperature compensation calibrated with over 10,000 data points
  • AxCad accelerometer cadence
  • IPX7 waterproof rating - 1M depth for 30 minutes
  • Exogram™ Hollow Carbon crank arms
  • Power Balance™
  • OmniCal™
  • LED indicator
  • CR2032 battery – 300 hours of riding time
  • ANT+™
  • +/- 1.5% accuracy


GXP $1399
BB30 $1449

Sold as a chassis (without chainrings). Chainrings available separately.


  • Material: Exogram™ Hollow Carbon crank arms, CNC machined AL spider 
  • Accuracy: 1.5%
  • Bolt Circle Diameter: 110 BCD (four-arm)
  • Arm Lengths: 162.5mm, 165mm, 170mm, 172.5mm, 175mm, 177.5mm
  • Q-Factor: 145mm
  • Bottom Bracket: GXP, Press Fit GXP, BB30, Press Fit 30, BBright
  • Wireless Technology: ANT+ 
  • Battery: CR2032 - over 300 hours of riding time
  • Weight: 616g (172.5mm, GXP)
  • Head Unit: ANT+™ compatible head units including Garmin Edge® 1000, 810, 800, 510 and 500, and Garmin Forerunner® 910XT (available separately)
  • Analysis Software: TrainingPeaks WKO+®, TrainingPeaks®, Golden Cheetah, Strava® (available separately)
  • Compatibility: Shimano® Hollowglide™ 11-speed chain rings


If the information you provide results in an incorrect order that must be returned you will be responsible for the $50 restocking fee. If you are unsure about any information required, contact us.


Monday – Friday. 9am – 5pm Eastern Time.
Orders placed outside of store hours may not be filled until store hours resume.

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Price $1,399.00

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