Get up to, ahem, speed with the next generation of computers. Bontrager's Node 2.1 Digital Computer lets you train smarter with power, speed, cadence and distance on one easy-to-read screen. Heart rate training is a snap with the included transmitter strap, too. It also tells temperature (the air's, not yours, which is probably good), and gives you your altitude and the percentage of the grade that you're climbing. Additional features include auto start, 20 minute time-out sensors and a settable interval timer. Node computers can receive data from 3rd party power devices that are ANT+ compatible like SRM cranks and PowerTap hubs, too.