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🛡️ Ride fearless with Slime’s ultra-light, ultra-strong flat protectors!
Slime 20274 Bike Tube Flat Protectors are lightweight, puncture-resistant liners designed to fit most bike tires between 12-26 inches. Engineered to be 17% lighter and 27% stronger than previous versions, they install easily between the tube and tire to block nails, thorns, and debris, dramatically reducing flat tires. Each pack includes two protectors, making them an essential upgrade for durable, worry-free cycling.

| ASIN | B003NUJ212 |
| Best Sellers Rank | #204,170 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #940 in Bike Tubes |
| Bike Type | Road Bike |
| Brand Name | Slime |
| Compatible Tire Width Maximum | 1.35 Inches |
| Compatible Tire Width Minimum | 1.5 Inches |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,978) |
| Global Trade Identification Number | 00716281003622, 00716281507427 |
| Included Components | (2) translucent green TPU tube liners |
| Item Type Name | Slime 20274 Bike Tube Flat Protectors and Liners, Lightweight, fits 12-26 x 1.5″-2.125″, Flat Proof for 2 Tires |
| Item Weight | 0.32 Pounds |
| Item Width | 1.35 Inches |
| Manufacturer | Slime |
| Manufacturer Part Number | 20093 |
| Material Type | Rubber |
| Model Number | 20093 |
| Size | One Size |
| UPC | 716281003622 716281507427 |
| Valve Length | 1.7 Inches |
| Valve Type | Schrader |
| Warranty Description | 90 days after date of puchase |
| Wheel Size | 26 Inches |
A**S
Works Well On E-Bikes
I bought an electric bike, and put on a comfort seat, a rack, and these tire protector inserts. I have had many inexpensive bikes, and inserts do help the tires last longer and have increased function and durability. I finally upgraded to an electric bike, and I was wondering if tire inserts by Slime worked on them. They fit great and work great, and installed very easily. Flat tires can destroy a bike's use so having protection is a great idea.
T**S
Great Protection for Bicycles
If you are looking for a liner for your bike tires, i would consider these. They fit right inside the tire and helps prevent flat tires. They function perfectly! They are also a great price. I would use these everytime. Slime is the best.
S**.
These are fine. Add some thorn protection if you want. Fix fewer flats. Other brands also work.
If you ride in thorny territory, some protection is way better than none, and worth the minor weight increase. If you're a world class rider with 3% body fat and a $20,000 bike, then have your 20-person tech team decide what should or shouldn't go in your tires and whether your performance will suffer with thorn protection! But if you're an actual normal human biker who wants to repair flats less often, put some of these in, be careful not to let them crinkle up or fold as you inflate, and enjoy more riding and less cursing and fixing. Or pick another brand, and put those in. There is no major magic in thorn protection liners, just some basic added protection.
J**K
Must have for bike riding
Easy to install works great never had a flat since I installed these not very wide but works great
S**Y
Ride more, fix less!
I got tired of fixing flats on my gravel bike, all of which were from small objects such as tiny wires from steel belted radial tire cords, dried blackberry thorns and clamshell shards. These liners were easy to install and I haven't had a flat since, so I decided to install a set on my ebike, especially the rear tire which is a real pain to take apart on the side of the road or trail.
P**A
this or something like this is a must if you dont like messing with flat tires
you can use these on what ever kind of bike, but i espcialy recomend using these sort of things if you have an ebike. incase you dont know, this is a very tough, yet very pliable liner that goes inside the wheel, in between the tire and the tube, so is something punctures the tire it likely wont go through the tube, saving you from a flat and you wont even know that your tire was just punctured, you just keep on riding. before you install it, try to puncture it with anything, a nail, tack, saftey pin etc etc, and you will see just how awesome these things are. once you install these you shouldnt get any more puncture flats i some what think they could include some thin double sidded tape to hold it into position, because it can be a challenge to install. the trick imo is to already have the tube in the tire and let most of the air out, break the bead on one side, and then use youe fingers to shove it between the tire and the tube
M**E
No flats yet, 6 months and counting
It's been 6 months since I ordered these and put them into my Schwinn 26" bike that I ride 2.5 miles each way to work 4d a week. Most of my flats were from these sharp seeds that get on the ground every so often here in bay area CA. I haven't had a flat since then and the tires tend to stay much more inflated than before. Very pleased. Only that I did try to find a brand that wasn't made in China. It looked like this was one of the few, and I spent the extra $'s-- then got the product and found it was made in China after all. Probably no way around it with products like this.
M**U
Works depending on debris
So I ride an e-bike to work everyday, was constantly struggling with punctured tubes and flats. I got this in the hopes it would stop, just stops the smallest things from going thru. Small thorns and stuff go right thru though so definitely not the best option out there
M**K
Gives peace of mind for my daily commute.
J**A
Excelente calidad y llego en tiempo y forma por paquetería, ya montada en mi bicicleta de DIRT JUMP , vamos a ver qué tal funciona, habrá segunda parte por el momento recomendable
P**P
This product was a dream to install. It was described as being for 1.5 width tires or more. I took a chance and bought it anyway. It fit perfectly for my 1.25 x 27 in tire. It curved into the outer tire staying well making installation of the rim with the tube easy plus adding sidewall protection. I have used competitive products and had difficulty centering. Not so with slime for my tire size. I am totally impressed with the value for money and the product ability. Description should include 1.25 tires (racer).
C**A
It's really good, value for money
D**N
Hace más de 10 años, compré un protector de la misma marca, tuve una experiencia positiva con su uso, ya que no tuve pinchazos por años, en serio, años de uso diario en condiciones de bajo puentes, charcos, construcciones, etc. Vendí la bicicleta y se fue con esos protectores. Luego de una mala experiencia con las llantas sólidas, regresé a utilizarlos. Me parecen diferentes, más elásticos, más ligeros. Tenía dudas de que funcionaran tan bien cómo los anteriores, sobre todo ahora que se triplicó la distancia al trabajo. Sin embargo han funcionando bien. Sigo sin pinchazos y con los beneficios de una llanta inflable.
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