I've had mine on the road bike on the trainer and it seemed fine. Since the new tri rig went in to get herself tightened up for the race I pulled the ol roadie off the trainer and took her out today. I have to say that saddle ROCKS in the real world!! I'm DEF swapping it out to my tri bike for the race! I did a couple of hours today and it was comfy as a couch! I was amazed! And was great for being down in the aero bars! A HUGE thumbs up!! WAY UP!!