Originally Posted by squirtdad

I have tried using sealant in high pressure road tires with tubes (think corsa g+ and Conti GP5000) 28 mm at 110-115 psi, in general it has not worked well, but is has spewed out making a mess of every thing . I do think it helped once. My assement is that it depends on what is causing the flat. if it is a thorn that is causing a slow leak good chances the sealant will work, but if you run over some thing sharp and it does not stay in the tire, the pressure is going to push the sealant out to fast to work....that is my theory base on observation.

I always carry a pump, spare tire and a patch kit......

it is pretty much always a balance between weight and puncture resistance. So far I have been really happy with GP5000, 28 mm with conti racelite tubes. 400 plus miles of commuting and no flats......on a road bike and i am 238. I pump them up to max 115Psi

Originally Posted by mjac

If you tried it on narrow, high pressure tires and it did not work then I guesse that is it. Another person said he tried it on narrow, high pressure tires and it did not work very well. No one has said they tried it on those types of tires and it worked. Even "LeMechanic" didn't say it was on those types of tires. I think everyone is basing their opinion on whether it works on that it works very well on high volume low pressure Mountain Bike Tires.

So we are back to basics, good tires and proper inflation. You are familiar with Continental Tires. If you wanted maximum puncture protection and did not care about weight, are the Contiinental Gator Skins the best there is?