Worse than useless for me. After not really having undue problems with punctures I “treated myself” to new tyres (Conti Mountain Kings) new tubes (Slime filled) and the Slime Tyre liners, and looked forward to a puncture free future. The liners were a bit fiddly to keep in position but I figured it would be the last time for a year or two I would need to do it. I was planning a 40 miler the next day, mostly on roads and smooth surfaces so pumped them up to 60 psi.

which would provide a very tough armor like additional layer of goathead thorn tire puncture protection also as well, that would act like a nearly impenetrable stainless steel mesh tire armor shielding belt; However, there are some situations where this "patch whenever needed" strategy is no longer optimal. For example, in northern climates where roads can have a layer of ice in them, they spread a particularly sharp form of gravel to reduce pedestrian accidents due to falling on slippery ice. The gravel bits can be thin, sharp and as much as 15 millimeters long. Many of these areas also erroneously combine pedestrian paths with bike paths, instead of placing the cyclist in the optimal location on the right side of the road. Often times, riding on the right side of the road is illegal if there's a bike path or shared use path nearby. Thus, cyclists have no option than to ride on the sharp gravel distributed on the shared use paths. Especially when the snow and ice melts, the roads have only a wet layer of this sharp gravel directly on pavement. The water acts as a lubricant, reducing the friction between the tire rubber and sharp gravel bits. The sharp gravel bits always puncture the tire rather than "puncturing" the pavement because the tire is softer than the pavement. In these conditions, it's often cold, wet and dark, and punctures repeatedly happen once every 100 km. Thus the "patch whenever needed" strategy is no longer optimal. now even if portion of the sharp goat head thorn actually makes it partially through the stainless steel mesh tire armor shielding belt;This is for the vast majority of conditions the optimal strategy. The strategy is based on the observation that punctures, although possible, are relatively rare. A cyclist can ride several thousand kilometers without getting a puncture. If the tires are made more puncture resistant, this will increase their rolling resistance. The rolling resistance means that 5 minutes of saved time patching punctures can actually require 5 hours of extra time needed to ride the distance. The Rimpact’s performance could be summed up in one sentence - the harder you push it the more it gives you. What I would term the corn flour effect where the harder you hit it the more it firms up is very apparent. Now one can also utilize some walmart athleticworks exercise foam mat material which is made out of NBR foam(nitro butadiene rubber) or also called neoprene closed cell rubber foam;

Tannus says, "A multi-cell foam compound that is lightweight, flexible yet incredibly durable. Aither is the culmination of 10 years of Tannus development within the tyre industry Tannus Armour is a foam insert that sits between your inner tube and tyre, providing an additional layer of protection against 4 main types of damage. The other option is to go tubeless and use sealant, which allows you to use a lower tyre pressure. This setup does work better on electric mountain bikes and road bikes, but not so well on Fat bikes, which are more similar to car tires. Tubeless tires also don't work with the very best of rims that have double eyelets. Thus, with tubeless tires one can only use unreliable and/or needlessly heavy rims because double eyelets are needed in rims to distribute spoke tension across both the inner and the outer walls. FLATBIKE ASSESSMENT: Airless tires will remain more difficult to install/uninstall than inflated tires. But not by much, with the right tool. And it’s a one-time deal. Having lived in the Mojave Desert of California where goat heads roam freely, I can tell you I got at between 1 to 2 flats a ride on average, and I used Kevlar belted tires, I also tried Slime Sealant and that was a joke for high pressure road tires, once you inflate to about 70 psi the slime would just blow out of the tire and the tire was flat again. Even tried Slime in a thorn resistant tube to no avail. Goat heads even penetrated Mr. Tuffy liners! while the liners did reduce the flat frequency to about 2 a week it didn’t stop them. Only when I switched to Specialized Armadillo All Condition tires did I no longer get flats, in fact I didn’t get a flat for about 15,000 miles, and when I did finally get a flat it was due to a Specialized Armadillo tire being worn down to where the cords were showing.Your comment about Kevlar: If it can stop bullets, it can stop thorns. is incorrect. Kevlar is a fabric, thorns can separate the fibers and penetrate, this is why an arrow can kill someone wearing a Kevlar vest unless it’s stab rated, and kevlar in tires are not stab rated.

As I did not get any instructions with my tire liners, I had to figure this out myself. PRODUCT DETAILS AND SIZE Some of the other inserts really felt as if they “turned on” as you went through the tire’s stroke. The Panzer is different in this regard. It feels neutral and there’s no place where it really feels like it switches on or times where it makes you realise “that was all insert”. There are other inserts that dominate the feel of the tire but that isn’t the case with the Panzer. With a discreetly low profile in the tyre, the continuous full-circle design doesn’t impede tyre deformation as some of its taller, intrusive counterparts do, promoting plenty of grip.Leaking from the side of the tube. A pinch flat, between underinflated tube and rim. Keep your tires pumped. One can actually get the sealing benefits of tubeless tires when using inner tubes. Simply put the tubeless sealant inside the inner tube. The problem is that it makes a huge mess, making patching the inner tube impossible.