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Slime Thorn Resistant Presta Valve Inner Tube (26 X 2.125)

by Slime
4.1 out of 5 stars 33 customer reviews

Price: $16.80 & FREE Shipping on orders over $49. Details
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
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  • Super thick rubber on the tire side (3.60mm thickness
  • 5 times thicker, lasts 5 times longer
  • Slime sealant already inserted
  • 40mm Presta Valve
  • 540g
23 new 4 used from $14.28
$16.80 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Slime Thorn Resistant Presta Valve Inner Tube (26 X 2.125)
  • +
  • Slime 23042 Presta to Schrader Valve Adapter
Total price: $21.56
Buy the selected items together

Technical Details


Product Description

Slime Thick Smart Tubes
  • Factory-filled with a precise volume of Slime Tube Sealant
  • Seals punctures up to 1/8" (3mm)
  • Environmentally safe, non-toxic, non-hazardous and water soluble
Item Specifications
ValvePresta
ISO Diameter559 / 26" mtn
ISO Width53,48,49,45,47,46,54,44,50,51,52mm
Labeled Size26 x 1.75-2.125
Valve LengthShort 32-40mm
Tube CompoundButyl
Valve CoreRemovable
Valve ShaftThreaded

Product Details

  • Product Dimensions: 10 x 5 x 3 inches ; 2 pounds
  • Shipping Weight: 1.8 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • Origin: USA
  • ASIN: B0019RJWZC
  • Item model number: 139929
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (33 customer reviews)
  • Amazon Best Sellers Rank: #76,111 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
  • Discontinued by manufacturer: Yes

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

My typical riding is in the dark, on city streets, through road debris and over curbs and I buy bike parts that don't let me down.

Two purchases later and I'm definitely not happy with this product. The slime part works, the tube and presta valve are of inferior quality. It's a shame that a product sold to handle punishment can't even handle a couple rides across town. Both tubes failed in the exact same manner. Both tubes had less than 40 miles. I replaced the rim tape thinking there was a burr or some edge at the valve hole causing the damage- the rim is over 10 years old and has seen some miles. Sorry, rim tape can't help a tube that shoddy.

If you are reading this review and know of a better self sealing presta valve tube product than slime-tubes, please share!

It's THAT bad. It is NOT worth exchanging for the same product. I will update this review when I find recourse or a better product.

Any enhancement to safety that the Slime may provide is negated by the shoddy quality of the tube.
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I'm so glad that Slime finally made this tube with Presta valves! We have lots of "goat head" thorns in this area and most bike tubes don't stand a chance. Ever since I put the Schraeder version of these tubes on my beach cruiser, my flat tire woes have been solved. But without a thick tube option for my Presta-equipped mountain bike, I was getting a flat nearly every time I would go out for a ride. My mountain bike is now finally rideable again! Since installing these tubes I have not had a single flat. Sure, they weigh a bit more than standard thin tubes, but I'm not such a gram-snob that I can claim to be able to tell a difference. I'd rather be riding with "heavy" tubes than constantly sitting trailside applying numerous patches to standard thin tubes.
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Slime Super Thick Thorn Resistant Bicycle-Tube (26-Inch)

Valve stem on one of the tubes I purchased (rear tire, 50 lbs pressure) broke off after riding about 3 miles on pavement, causing a blowout and almost causing an accident.
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Ten years ago when I was an avid mountain biker I fell in love with Slime inner tubes. I had tires with 20 to 30 punctures and they still held air. I loved seeing the little green spots on my tires letting me know that another puncture was sealed. Something has changed since then. I recently started riding my bike to work and I thought it would be a good idea to get some new Slime inner tubes. Sure enough, I got a flat one day, I had four punctures and ended up walking home. I thought it was my mistake to have installed regular Slime inner tubes. So I installed Slime "Smart Tube", "Extra thick" inner tubes. The first one broke at a seam after on week. While installing the next one the Presta valve separated from the inner tube. The third one lasted for a few weeks before the Presta valve separated from the inner tube. On the box under the bar code it clearly states that the inner tube is made in China. China makes some good stuff but this inner tube is JUNK!!! I strongly recommend that you do not by this inner tubes until they fix the problem.

BTW, when I had a problem with the first inner tube, which was a gift, Slime replaced in very quickly with no questions asked. I e-mailed Niagra about problems with the tubes I purchase from them and they sent me another at no charge. Before I installed it on my bike I gave the Presta valve stem a little push and quess what happened? The valve stem broke off.
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not garunteed ( actually i once got a box of replacements when i called the company that past few leaked form seam of valve stems fall off within 1 month,week, 1 day, one even fell off as i put in tire) the extr thick is still a better bet to protect from goat head thorns, but most likly valve may fall off within 1 year. thats my experience, i go thro a dozen a year aprox.on 5 bikes. Oh and Presta was acidient. i prefer Shrader valves. oops.
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By Ken on January 20, 2014
Verified Purchase
I've seen several negative review saying it doesn't work--they do work. I routinely (every ride) find little green spurts where I've collected "goat heads" or glass and the tube seals up as advertised. I've lost air but never flatted. I did hit a 2 inch nail (I'm not sure how it is even possible on a bike but it is) and it flatted because it tore my tire.
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The stem separated from the rest of the tube and left me walking my ride off of the mountain. I may have tightened the little nut too much that holds the stem in place, but I am more inclined to think that I just got a bad unit. My other tube is going strong.
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I have been using this type of tubes you years. They had never failed me. I used too go though a bike tube a week, but since I got these I haven't had a flat since I can remember. I put these tubes is all my bikes.

Only downside is they are a bit heavy for a bike tube
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