Correct, no "non trail" for the front so I run the trail in the front and regular (not-trail) in the rear. Works fine and the front outlasts 2 or 3 rears. I was able to get over 10K miles on a rear of pure long distant travel (coast to coast and back) and that is more than I have done on any other rear. I just put a new set on (third rear RP4 second front) before I left on another coast to coast and back ride. I expect to make it home without having to worry about needing to change tires. Love these tires! ::008::