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Review of the Slime Flat Resistant Tubes

About.com Rating 4.5 Star Rating


Slime puncture resistant tube in box

The Bottom Line

Slime's self-sealing flat resistant tubes will help you have fewer flats. Period. And that's worth a lot when you are relying on your bike for transportation to work or school or wherever, or are just out on a ride and don't want to get stuck 20 miles from home. Weight weenies who are concerned about how they can shave three grams here or five grams there might be concerned about the extra weight of the sealant, but the normal rider will not notice any difference and even if they did, it is certainly worth the peace of mind.

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  • Fewer Flats!


  • A Bit More Weight on your Rims


  • Available in just about every tire size, with both schrader and presta valves.
  • Sealant good for two years guaranteed
  • Seeks out and repairs punctures and cuts up to 1/4 inch
  • Sealant is non-toxic, non-flammable and biodegradable

Guide Review - Review of the Slime Flat Resistant Tubes


Slime self-sealing flat resistant tubes are regular butyl rubber tubes filled with "Slime" sealant, which is a bright green liquid with tiny fibers and rubber particles suspended it to to act as a clotting agent. During everyday use the sealant stays liquid inside your tube, evenly distributed around the inside as the wheel spins.

When a puncture occurs, the sealant seeps into any small holes, pushed there by the escaping air. The Slime sealant then quickly seals the hole, clogging it with the clotting agent to prevent further loss of pressure, even as you're riding. You often won't even know you had a flat.

If you ride in an area where the roads have with glass shards, wire, or small thorns these tubes are nice and will save you headaches with changing tires, walking alongside the road pushing your bike, etc.

Though it can be used to patch existing flats, Slime is not intended for use in tubes losing pressure from sidewall punctures, bead leaks, damaged rims or faulty valves. Not recommended for use in tubeless tires.


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