Many itu pro's will ride trainers at very kick ass "exotic" locations race week (i'd be very curious who the model/athlete is in the picture). They have their course familiarization ride but beyond that many will simply hit up the trainer. How many pro's or AG'ers get hit in Kona each year pre-riding the course?

ETA: And I just noticed it was a feedback ad which those things are awesome. Those trainers are so light weight and so it kinda makes sense to showcase riding an trainer in "paradise". It's pretty good advertising that the OP made a note of a guy riding a trainer in "paradise".....essentially the design of the ad worked......and they are so light weight, easily to travel with. Other trainers not so much.

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Brooks Doughtie, M.S.
Exercise Physiology
-USAT Level II