Re: Slime tire sealer.
We have been running it in our street vehicles for years around here, never have had any problems, if you do it properly, the stuff balances itself out within a couple of hundred yards, the installation instructions state, take the tire off the vehicle let the air out, pull the valve stem, insert the stuff and then spin the tire a few times, reinstall the tire and drive it at least a mile..
When you live on a 7 mile long gravel road, you find ways to make sure you don't get flats...
My wife recently drove our van on a 1200 mile trip, and when she arrived at her destination she called me and stated she heard a continuous clicking sound when driving, that got faster as she drove faster, I told her to take it to a tire sop and have it checked, turns out the tire had a quarter inch diameter sheet metal screw in it, when they pulled it out, they were surprised, no air escaping sound. The slime fully sealed the hole up.
This stuff is the same principal as many of the tire manufactures used to make, Cadillac was real famous for their self sealing tires in the early 80's, same type of stuff from the factory in them.
Be aware though, it will not seal a sidewall puncture, it will only work on the tread area of the tire. The last three flats I have had on a bike was in the sidewall area right at the transition between tread and sidewall, I picked something up while leaning over for a turn.