Quarq ELSA R is for traditional 10- and 11-speed drivetrains, and available in 130 BCD. It works with chainrings from SRAM, Shimano® (10-speed only), Rotor (130 BCD only), Praxis, WickWerks and others.
Exogram Hollow Carbon crank arms
Power measurement in the crankset spider — the heart of your bicycle, its sole job is to convert the effort from both legs to forward motion.
10K™ temperature compensation eliminates temperature effects on power measurement.
AxCad™ accelerometer cadence removes the need for a magnet.
The LED and visible ANT+™ ID streamline installation and operation.
OmniCal™ means you can change chainrings without affecting accuracy.
CR2032 battery – 300 hours of riding time.
+/- 1.5% accuracy