I have always feared getting a flat out on a trail. No biggie on my mountain bike….The OEM knobby tires which come on the Sur Ron are easy to remove and remount. But once I switched to Shinko 244s I have to use real tire irons to remove and remount them. Plus having come from road racing I’m accustomed to tubeless tires…
So I investigated Tubliss, an alternative to tubes. I ended up buying two, one for my 21” 1.6” wide front rim and a second for my OEM 19” 1.4” wide rear rim. Because the OEM rims are narrower than the Tubliss’ are designed for I had to grind down the block on the rear to get it to fit. Once you examine the Tubliss you will understand.
There are so many advantages I’ve found using these devices. First you get a 360 degree rim lock using them. This is especially good for the rear, since there is no more shearing of the tube’s valve stem. This is normally caused by running air pressure too low and as the tire spins against the rim, it forces the valve stem to shear. Of course this can be prevented by using a normal 4” rim lock. But they are a total pain in the ass! LOL.
The second advantage is the air pressure, or more accurately the lack of air pressure I can run in the tires. On rocky and root filled trails I run 5 lbs. in front and 10 lbs. in the rear. Deflection with low air pressure without worries about pinch flats is wonderful! Some folks use Mousse Bib Foam Tubes. I don’t like them because you cannot adjust the ‘air pressure’ in them because, well there is no air! But for those who run over loads of thorns those may be better.
And although I have yet to encounter the situation, Tubliss contends that you can run their system without any air….. we’ll see if that is true if it happens to me.