2 of 3 customers found this review helpful.
I purchased a set of Hutchinson Intensives to go with my new Stan's Notubes Grail wheelset and was hoping to get the advantages of going tubeless on my road bike. First few hundred miles things were OK, but I hit something in the road 50 miles into a 100 mile ride and the front tire spewed sealant all over. I quickly rotated the tire puncture point to the bottom of the wheel and it eventually sealed up, but I couldn't add much more than 40 psi in the tire or the sealant would start spitting out again, but made it home, worrying the entire time that I'd roll the tire off the rim on any downhill turns.
My first thought was I just had bad luck and the puncture was bigger than the sealant could handle, so I used a Hutchinson tubeless patch on it, but that just ended up bulging and breaking through and wouldn't hold more that 40 or 45 psi either, this happened on another 100 mile ride, and I had to hobble home for 25 miles with a tire with only about 40 psi in it.
So my second thought was that the puncture was too big even for the patch, and the rear tire seemed to be holding up, so I tossed the first tire and bought another.
But, after about 1k miles the rear started getting a bump on the tread, and I could see that there was a small puncture that the sealant had sealed. Well, the sealant worked on a small puncture, but why is the tread bulging? I kept riding and the bump kept getting bigger until I could hear the bump as the tire spun around, and sealant would ooze out of the puncture, so I pulled the tire off and noticed that the tread was separating from the outer and inner layers with sealant getting pushed up into the bump. So I cleaned it all up and used another tubeless patch, but the bulge came back and the small puncture hole started to tear open and the patch started bulging through and eventually sealant started spewing out again and it couldn't seal the puncture that was now too large.
So now I've got over $270 invested in tubeless tires, one already tossed out and another on its way out, so I put another tubeless patch over the puncture and put a tube in it hoping I'd get a few miles out of it but the tube started bulging out of the tire through the patch and I flatted out on the road and had to have my wife pick me up since the tire was now irreparable. That's now two tubeless tires down.
I replaced the rear with a tubed tire from another bike, but I was training to do a double century and couldn't afford to have a puncture that wouldn't seal or hold 100 psi during the ride so I pulled off the front tire and put a tubed tire on. I did my double century with no flats. I've thrown out two tubeless tires with maybe 500 on one, and 1k miles on the other, and now have one tubeless tire that I just can't rely on to use.
Thank you for your feedback.