CATEYE OHR-31 OPTICAL HEART RATE SENSOR discount_processed The Shimano CS-5700 is the

The Shimano CS-5700 is the suitable 10-speed cassette for 105 group

Stereo 120 HPA 29 (2015)

Rear wheel equipped with Shimano freehub

Durable double-wall rim with 20mm internal

CATEYE OHR-31 OPTICAL HEART RATE SENSOR discount_processed The Shimano CS-5700 is theIntroducing the OHR 31 Optical Heart Rate Sensor, the perfect balance of performance and convenience. This compact wrist watch style device offers dual band Bluetooth 5. 0 ANT+ capability for easy connection to cycling computers and smartphone apps, plus USB rechargeable battery with up to 24 hour run time. IPX7 rated to withstand the elements, the OHR 31 also features an LED low battery indicator and auto shutdown mode for maximized battery life.