At the beginning of this season I decided to jump on the trials tire bandwagon. I chose the Dunlop D803. Mounting the tire was a significant challenge. I was not successful so took it down to my local garage. Well lubed on the bead but it was stalling the car tire machine. We eventually got it on but I will be cutting it off. No way I will get that bead over the rim. Great traction on our wet / rocky single tracks here in Calabogie Ontario. It significantly increased my confidence and riding skills. Only noticed less traction going through mud holes but it still got me through them. I was lucky not to get a flat since I would not be able to fix it. I need to do a tire change now and am looking for recommendations on other rear trials tires that are easy to field mount.