Stop Flats2 Road Bicycle Tire Liner

It has been 2 weeks since I installed Stop Flats 2 to both tires. I have given up on expensive tires. Without much hesitation, I have returned my trust to the stock tires that came on my bike. The tires have a perfect record - yes, they are puncture free. Adding these tire liners to the already impressive reliability of the stock Kendas I ride on will hopefully help me avoid puncture-caused flats for a long time. One way that they have already saved me is deflecting a sharp thorn that I found lodged on the right shoulder, facing the sidewall instead of the center.Unlike what many skeptics will tell you, Stop Flats 2 does not pierce itself into the tubes. Rather than producing them with simple plastic, the company used poly- ... whatever their compound is called. It is soft on the side that goes against your tube, but tough on the side that faces the down on the tire. Based on its construction, the liners should not cut their way into the tube like some other brands out there. If you don't mind the extra weight, which is a couple of ounces, go with these liners. There is almost no difference in ride quality after installation. Don't listen to excuses that haters have to offer. This is not sharp plastic.Preventing punctures cannot be solved by tires alone. Unless people are willing to ride tires that are as thick and hard as automobile tires, there are not going to be indestructible road bike tires, as they are too thin and light. You know, that "Buy expensive tires and use them alone without protection" excuse simply does not work. You have to spend 40 to 60 dollars on each of them. Once they suffer major cuts from knives, glass, and nails, the holes will become large to the point that covering the inside with patches will not prevent the tube from eventually bulging out. Over time, one will have to pour 50 bucks every couple of months for a brand new tire after each one accumulates too many cuts.Liners are 10 bucks a pair, plus you don't have to replace them, since they work. It's simple math and common sense. Pay 10 dollars for long term security for your tires, or keep wasting money on world class tires, spare tubes, and patch kits. Never mind the disappointments and time wasted to fix flats. If you are fine with frequent flats as a trade-off for lighter tires, go without Stop Flats 2. If you cannot tolerate flats, get them. After all, how can you be faster if you keep getting flats with "faster" tires?Update: A friend suffered 2 flats riding through the same streets as I do, while I enjoy the insurance that Stop Flats 2 provide. Still no flats so far, 4 weeks after installation.

Bought this since I had 2 flats in 2 bike rides locally around my area. Seems as if the streets are dirtier than normal with nails, glass, and debris. Plenty of companies make tire liners, and the reviews for this were good, so I took a shot with them.Product itself is 5 stars - works just as advertised and haven't had flats for 2 weeks now after numerous bike rides with them. The reason for the 4 star review is that the installation was trickier than expected. The liners tend to deviate inside the tire even after carefully lining it up in the tire more than 1 cm either way. I think there are a couple solutions (not in the instructions) that would work for people having issues. The first approach I read online would be to add a small amount of rubber cement to the tire to glue the liner in place, just enough to hold it centered before adding the tube. A second approach I read would be to use the inner tube to help hold the liner in place.I used this second approach with limited success, as most bikes require the tubes to be fairly flat when adding the tire to the rim. Since the liners require inflated tubes to hold it in place, and I had to flatten the tubes to get the tire in place, I wasn't certain that the liners were centered. I lacked rubber cement to try the other approach, so I left the tire liners as is. To date though, I haven't had another flat, so maybe they were installed centered enough.If anyone has suggestions to install the liners better, please let me know.

I bought this Liner after getting 6 flat tires in 1 month in combination with the Avenir Thorn Resistant tubes. It works great. I ran over 5 thorns and just pulled each one out. Another time, I ran over 20 thorns, 10 in front tire, 10 in rear tire. After I got home, the tube deflated slowly over night because it was flat in the morning. This is probably the better option because the Avenir Thorn resistant tubes are VERY THICK AND HEAVY. You will feel it. It fills like someone put 20 lbs weights on each wheel. And you will ride about 2-5 mph slower. Lots of rolling resistance with those tubes. The solid tube tires are even worse. To alleviate this problem inflate to max air lbs. I've since put back the regular tube in the rear tire with this Liner. And now it's so much faster and perfect combination. I left the front tire with the Avenir Tubes and this Liner Just in case. Plus if the thorn hits you on the side, you're hosed because the liner only works on the contact side of the center of the tire. Good Luck!

The headline says most everything, before using these, using a tube with a great number of patches was common, after installing this protection between the tire & tube the occasional side puncture happens, but it has become an occasional inconvenience instead of enduring the hassle of daily rides with one or two flat tires...If you ride 500 to 600 miles a month, then these are a summer time narrow bicycle tire requirement in the Southwest part of the USA. A knobby tire on a mountain bicycle sometimes are thick enough tires that goat heads do not create much problem when out riding. I do not use a very heavy bicycle to commute, or on weekend rides. Narrow tires have 10% of the rolling resistance of the big box Mountain bike, but without the heavy thick tires you need some protection, and these tire liners perform the task with out much change in weight or rolling resistance.Use these to keep air in your high pressure tires protecting you from common road hazards...

These are faultless and easy to fit. Have used them in a range of bikes. Have them on two bikes I use for daily 15km commute to work and weekend rides and so far no punctures. Got these for my partners bike. Save yourself a lot of trouble and get these.

For a set of tires that don't have puncture resisting features, this is perfect. It's tricky to install, but once fitted with an inner tube and then placed onto the rim, it holds it's place. The tire seems to roll smoother down the road (I suppose it takes some of the resiliency out of the tire, but I barely notice that at all, if that's the case). Well worth it.

Good product