this was thicker than I expected, appears durable
STI Heavy Duty Tube
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Out standing tube for the price. stretches as you need it to and is easy to install. would recommend this product
Nice thick tube. it is a part you don't see that much, but you will be happy with this heavy duty tube
Thick, tough, just what I needed
These tubes are just as good as a top brand tube, but at a cheaper price.
I have replaced all of my tubes with these. They last longer than any I have tried. We jump a lot so they are put to the test. I haven't had to replace one of these yet. I have had the same tube in mine for over a year and just bought a set for our son.
these tunes hold of great, have been using them for years.
Gave 4 stars for ease of install because I didn't want people to think k it was super easy because it isn't. But all the extra thick HD tubes are super hard to install, nothing to do with this tube.
Bought for the desert 100 to avoid pinch flats and it didn't disappoint
After using many types and aftermarket tubes, I'm very please to have started using this one. Far less flats with this tubes, along with using the rim guard. If only I can figure the perfect way to prevent the valve from breaking, would be completely set. Hopefully ordering a rim lock will fix this headache of a problem.
I recently installed a new STI tube with a new rear tire and upon completion could hear a leak from the valve core. I made sure the valve core was tight with a metal valve core tool, then depressed it several times in hopes of seating it properly with no positive result; the leak was slower, then greater, then seemed gone but some spit on a finger over the valve stem/core still revealed bubbles and a slow leak. I figured that I would just change the valve core to a known good one from the previous tube, but when I tried to unthread the STI valve core, it made it about 75% out but stopped flush with the top of the valve stem and just spun as if it were stripped. After playing with it a bit more, I finally threaded it back in and just rode with a slow leak and re-filled it every hour or so until I replaced the STI tube with another brand.
These are the only tubes that I run. They're one of the most inexpensive on the market, but the low price is not a reflection of quality. They are very durable.
Worked great. Was the right size and fit the tire perfect.
Bought twice. Both times worked amazingly well
This tube was much thicker than what I pulled out of my rear tire! Other than that, it holds air, so it does its job.
These are great and durable and I just love them
Definitely check the tubes before you install my tube had a hole in it so good throng I checked for that
Simple dirt bike tube, not much too it, it simply works
heavy duty and looks like it will last a good while
Easy to install yourself great to use on extreme traile riding. Would definitely purchase again. (Grate product).
Manufactured with a hole in it. You could feel the thinness and inconsistency where the hole was. Had to take the brand new one out and put old used one back in.
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For a 2.75x21, you can use any tube from 2.50-3.00 with varying pressure.
For a 120/80x18, you want at least a 4.00 tube, but preferable a 4.50 or a 5.00. a 120 rim is about 4.75 inches wide, so you want a tube close to the same width.