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Availability:
In Stock.
Arrives
Wednesday, Aug 27
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Size: 20 Inch - 2 Pack
Style: 20in Schrader 2pk
Features
- These are no ordinary bicycle tubes! These extra strong inner tubes stop flats for 2 years because there is Slime inside.
- Slime Tube Sealant seeks out and instantly seals punctures in your tubes up to 1/8" (3mm) using Fibro-Seal Technology
- Designed specifically to stop tube punctures from ruining your ride and keep you going
- Schrader Valve tube, that installs like any traditional inner tube and full instructions inside every pack
- Environmentally friendly. Non-toxic, non-corrosive and non-hazardous, Non-flammable, Water soluble
Brand: Slime
Valve Type: Schrader
Material: Rubber
Bike Type: Mountain Bike
Wheel Size: 20 Inches
Brand: Slime
Valve Type: Schrader
Material: Rubber
Bike Type: Mountain Bike
Wheel Size: 20 Inches
Item Diameter: 20 Inches
Item Width: 1.5 Inches
UPC: 716281507526
Compatible Tire Width Minimum: 38 Millimeters
Global Trade Identification Number: 26
Item Weight: 323 Grams
Manufacturer: Slime
Size: 20 Inch - 2 Pack
Compatible Tire Width Maximum: 53.98 Millimeters
Item Package Dimensions L x W x H: 11.85 x 4.65 x 2.64 inches
Package Weight: 0.63 Kilograms
Item Dimensions LxWxH: 5.25 x 3.63 x 4 inches
Brand Name: Slime
Warranty Description: Two years from date of installation
Model Name: Bike Inner Tube Valve,20"x1.50-2.125"
Color: Schrader Valve
Suggested Users: Sports and Outdoor
Number of Items: 2
Part Number: 30075
Style: 20in Schrader 2pk
Included Components: 2 x Slime filled inner tubes
Sport Type: Cycling, Outdoor Lifestyle
Date First Available: June 29, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Aug 27
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 26x1.75-2.125
Style: 26in Schrader 2pk
Great tubes. Easy to install as any other tube. Good value if you consider buying slime by itself. They seem very durable. I like the idea of having the extra protection of slime. The fit my 2.3 tires with no ruptures.
Reviewed in the United States on July 27, 2025 by John Harris John Harris
Size: 700 x 19-25mm
Style: 700 X 19-25mm Presta
I think these are good tubes, but overrated. The "no more flats" is certainly not true. But at the same time, they have worked well for me in about five thousand miles of riding. Here is my experience: They do get punctures the same way as regular tubes, but if you are moving along the puncture will partially seal. I also use very tough tires (Continental Gatorskin). You can see the green stuff ooze out at the site of the puncture before "sealing". On a recent occasion, my tire went completely flat at a very inconvenient location. I pumped it up instead of trying to replace the tube which I carry (not the slime type). I pumped and spun the tire as fast as possible; repeating several times. This got it up to maybe 60 psi which was good enough to ride back to my car some 30 miles away. When I got there, the tire was still rigid enough to continue riding on. But at home after a few days, the tire was down fairly low, although not completely flat. I replaced it at home, which is a lot easier than doing it on the road, especially since I find it difficult to take the tire off the rim due to arthritis in one of my hands. Another problem I encountered is that the green goo clogs the valve making it hard to inflate the tire when it is low. I take care of pressure before leaving home. I found that if you let out some air the green goo is flushed out of the valve. Then you can re-inflate the tire more easily. I would not recommend risking inflating the tire after you have arrived at your starting destination. Let me say a little more about the flat tire problems on road bikes. I found that the aforementioned Gatorskin tires take care of most of the puncture problems. They resist all the big stuff like small nails and glass shards. What gets through them is fine wiry debris that is left from shards of shredded steel belted tires that are on the road side. In almost all my flats, that's what I found. These wires get through the kevlar and cannot be seen or removed from the outside. Hence requiring a removal of the tube before the tire can be cleared and restored. No tube will seal itself permanently in this situation. So, if you use the puncture resistant tires, these tubes will essentially get you home, but you still have to replace them. For me, that is worth it, so I am giving it 5 stars. I know riders who change tubes out in 5 minutes - for them it is not worth it because these tubes are heavy and expensive. Addendum: After I wrote the review, I had another flat with these tubes. The tire went completely flat after about 50 miles of riding. It was pumped up at the start to 80 psi. I was not far from the end, so I pumped it up and it held for the next 1/2 hr of riding. It still had good pressure, but the next day it was flat. Upon examining the tube at home, there was a small hole in it. It did not seal, or whatever the mechanics was, it is not able to seal to give you more rides as long as the cause is not fixed. Then you can patch it up as you would any other tube, but I just throw the punctured ones out because they can never be relied on. I am still using these, because they are better than normal tubes for my circumstances and needs.
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Reviewed in the United States on July 18, 2022 by Dr. X
Size: 28.4" x 1.8"-2.1"
Style: 24in Schrader
First tube the Schrader was clogged and valve core would not come out. Replacement was sent out immediately without having to return the bad tube. Replacement worked great no issues.
Reviewed in the United States on July 21, 2025 by RB
Size: 29 x 1.85-2.20"
Style: 29in Schrader
Out of the box: Good: rubber is not the worst I've seen, I'd add more talс, it pretty dry Good: green valve cap look cool, it has the stem extraction tread on the other side Bad: you would never be able to unscrew stem valve with that plastic cap Bad: think 5 times before inflating, if you will deflate, green slime will make your stem valve leaking, so see above, you'd need a real tool to take off the stem valve, clean it and put it back I didn't do jumping tests on it, will update, so far looks solid on city drive without anything above it
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Reviewed in the United States on June 19, 2025 by aido
Size: 27.5" x 2.0-2.4"
Style: 27.5 Presta
Does the job, but... for most holes the tube will get you home. Usually the patch fails when you fully inflated the tire and the tubes are not repairable because their surface is quite slick and won't hold the exterior patch. But the tubes are cheap, keep an extra one.
Reviewed in the United States on June 17, 2025 by S. Stokes
Size: 26" x 1.8"-2.1"
Style: 26in Schrader
Wonderful product for the price although I don’t believe the slime does what it’s supposed to the one I replaced had the same slime in it but it’s still leaked but I bought another one so it must’ve been pretty good yeah yeah
Reviewed in the United States on August 11, 2025 by Robert H.
Size: 26x1.75-2.125
Style: 26in Schrader 2pk
Disclaimer: I've worked on a lot of bikes over a lot of years, and I've installed a fair number of tubes and tires. I'm not inexperienced with bicycles or their maintenance, and I'm certain that I did everything correctly when installing this tube. Do what you will with that information. I bought these and a pair of tires to get a family member's beach cruiser bike back on the road. The old tires were dry rotted and I decided that all new rubber would be the prudent solution. Spoiler alert: It wasn't. Took the old tube (which still held air) and tire off the wheel. Inspected the wheel and the rubber isolator band for damage or sharp edges, found none. I installed this per the instructions. I made sure that there was nothing on the wheel that could damage the new tube, and I installed the tire using plastic tire levers to make sure that nothing would pinch, nick, or mar the new tube. Once installed, I inflated the tube. The instructions say to inflate the tube to recommended pressure but do not specify an actual value. However, according to the sidewall of the tire, the recommended pressure is 40-65 PSI. I inflated the tube to the minimum recommended pressure (40 PSI). This is a pretty typical pressure for tires of this size so I didn't anticipate any problems. I inflated the tire using an inflator with a built in gauge, and I snuck up on the pressure slowly. I did this because if I overshot, I'd have to bleed air back out, and I didn't want any slime to come out in the bargain. I got it to 40 PSI on the nose and called it good. The tire seated correctly all the way around and looked good. I began to put the wheel back on the bike when I noticed that the tire had started to come off the rim on one side. It was slowly pushing away from the wheel as I watched, and it took my mind a second to realize that the tube was bulging out and starting to bubble and fail. I reached for a Schrader core remover to release the air pressure when the tube exploded in my hand. Good thing I had the bulging portion pointed away from me. Loud as a gunshot (and the ringing in my left ear didn't subside for about 20 minutes) but no physical damage done. From inflating the tube to having it burst was less than 2 minutes. It held air initially (IE it didn't have any leaks in it when I put it on the wheel), but it began to bulge about a minute after inflating to the correct pressure. I'm no tube-ologist but that tells me the tube had a manufacturing defect that weakened the sidewall. It's a shame because I was looking forward to having puncture-sealing slime to keep the air inside where it belongs. I haven't measured but I think the split is about 6" in length (see attached photo). That tube was LOUD when it went. I'm glad I was wearing eye protection but I wish I'd though to wear earplugs as well. You can bet I'll wear them next time, and I'll inflate the tube from far away with a long air hose, too. So I have one burst tube and another that I don't dare use, plus a bicycle that I cannot repair in time for this weekend. I specifically went with the Slime brand of tube because I expected it to be better than the typical no-name tubes that you find everywhere. Well, I know which brand I WON'T be buying. Now I get to reorder tubes and possibly roll the dice with some mystery brand that, admittedly, won't be any worse. If these are Slime's Extra Strong tubes (it says so right on the box), I'd hate to see their Regular Strength stuff.
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Reviewed in the United States on July 19, 2025 by Zero Signal Zero Signal
Size: 700 mm
Style: 700 X 28-35mm Presta
Great to have. Very easy to install.
Reviewed in the United States on August 14, 2025 by Archie Magtibay