If you’re on a strict training regimen, or you just like to know the details of your training, it might be necessary to have a cycling computer on board. The Bontrager Node 2 Digital Wireless Computer gives you features such as an altimeter, and it also gives you percent grad functions. The computer also has an auto-start feature, 20 minute time-out sensors, and a settable interval timer. Its easy to read too, with a large digital display. The Bontrager Node 2 Digital Wireless Computer costs $149.99 and it can be purchased at the Trek online store.