In its purest form, motorcycling is all about stomach churning interaction between man and machine – and nothing hits the nail on that head better than a tightly wound naked bike. Lighter and gutsier for 2013, the Triumph Street Triple packs a 675cc three-cylinder that may lack the outright punch of a literbike, but offers high-revving nimbleness instead, exactly the sort of stuff that gives enthusiasts a heady buzz. Knee draggers can opt for the "R" version with more suspension adjustability, but it’s the spunky spirit of this stripped down bike that makes everything else look fat. [$TBD;]