by Duncan Larkin, Published Feb. 22, 2011, Updated Feb. 23, 2011 at 8:10 PM UTC
It weighs six pounds and can do almost anything.
by Mario Fraioli, Published Nov. 1, 2010
iPhone app debuting race week; NBC Sports will provide two-hour, same-day national coverage.
Start your FREE subscription to Competitor Digital today!
Get our monthly digital magazine, weekly running content & exclusive offers delivered to your inbox.
© 2014 Competitor Group Inc. All Rights Reserved