If you're looking for a power meter that you can use when training and racing, get the new Quarq ELSA 10R Power Meter Crankset - BB30. Since it's not connected to your wheels, you can switch freely between training and race wheels. Now featuring Omnical, you can also ride your choice of chainrings without having to recalibrate the power meter. Now that's freedom! Quarq has repositioned the battery so it is easily accessible and can easily be changed without having to send the unit in. With Power Balance giving you individual left/right drive strokes and the lightweight Exogram Hollow Carbon crank arms, the Quarq ELSA is the pinnacle of power meters.
+/- 1.5% accuracy
Exogram™ Hollow Carbon crank arms
CR2032 battery – 300 hours of riding time
For use with BB30 bottom bracket