Combining the latest Quarq technology and exact geometric design, RIKEN R is a reflection of your intent. It features durable, integrated electronics, a CR2032 battery and works with a wide range of chainrings. The LED indicator and visible ANT+™ ID streamline installation and operation. OmniCal™ gives you flexibility and repeatable data, no matter what the discipline – road, time-trial, triathlon or cyclo-cross. With lengths from 170-175mm and five bottom bracket options, RIKEN R is as adaptable as it is purposeful.