Sigma Sport

Sigma's Rox 9.1 delivers all the data you need to get the most efficient ride possible and then transfers it all to your PC when you're done! It's stuffed with all the features you need to take your workout to the next level, including power, cadence, speed, current heart rate and target HR zones, as well as temperature, altitude and ascent/descent. Possibly the best feature is Sigma'a Ghost Race. It lets you race yourself based on a previous ride so you can actually see yourself getting faster! With Sigma's smart 3-channel wireless transmission system, you can also view multiple measurements such as speed, cadence and pulse, at the same time without interference. And, you'll love the included docking station and Data Center software which easily transfers all your ride info to the PC!