Here's just one example. The lead rider appears to have the stock bars that come on a Trek T1 which have indentions for guiding the brake cables under the tape. It's a road bar.



The Trek T1 uses the Bontrager Select OS Road bar:
http://www.trekbikes.com/us/en/bikes/road/track/t1/

http://store.trekbikes.com/jump.jsp?...&bShopOnline=1