As expected
As expected - thank you!
Very nice!
Pros
Great quality and quick replacement,
Cons
None.
Great Tube and no puncture yet
Pros
Ride this every day to work and have not had any flats which is pretty amazing
Cons
Assuming that this is not the lightest tube in the world, but who cares.
i like presta valves
Pros
these tubes have kept their air pressure and... no blowouts or flats
Cons
none
Other Thoughts
I put in 80 miles a week over NYC streets and avenues,,, these tubes have performed to a degree that gives me great confidence in them,,,
good tubes
Good quality tubes,5-$8 instead of $20 for skinny tubes with PrestaShop valves.
Q-tubes
used on a 700x40 rear tire and a 700x38 front tire which the tubes fit well have put 742 miles so far on them, I would recommend these tubes because of the fact I'm using these on a gavel bike which to date have not had a flat. A good product for the price.
Florida cyclists
Excellent and fast delivery!
We ride recumbent trikes in SW Florida and thorns are a real menace here for inner tubes...every plant has thorns. I am pleased that Modern Bike has stock for our size tubes. Recommend this supplier.
Excellent Service!!
Excellent product that has been installed and works well. The original tube was just too thin and didn't last as long as it should have.
Overall very good replacement product for my vintage bike
Pros
Direct replacement for my vintage Italian bike
Cons
None
Good innertube
Pros
Consistent ride, minimal pressure loss overnight
Cons
none
Q-Tube Presta Valve
Didn't last one week. Properly installed, worked for 6 days, then it broke. A little hole in a place where the surface was especially thin. Factory defect.
Not Impressed
Pros
Features (thorn-resistant, removable presta valve core)
Cons
Very poor reliability
Other Thoughts
After more than 500 miles of trouble-free riding on- and off-road with factory-installed standard tubes on our new Cannondale Quick CX2 bikes, I decided my wife and I were pushing our luck and purchased four Q-tubes to "upgrade" to thorn-resistant tubes with removable valve cores. During our first ride after installing the Q-tubes, the front tire on my bike suffered a fast flat (fully deflated in under 5 seconds) with less than two miles of use. The failure was determined to be caused by separation between the rubber and valve stem (I have a picture but couldn't find a way to include it with this review). I contacted Modern Bike about the problem and received outstanding support. We concluded that premature failure was most likely a fluke and a replacement tube was provided free of charge. Unfortunately, my rear tire then went flat after about 25 miles of riding, and that flat was also caused by exactly the same failure mode: The rubber separated from the valve stem. With a 50% failure rate with the exact same failure mode, I completely lost my confidence in the Q-tubes product.
Nice product & good price
Pros
Very nice product! I couldn’t find it anywhere else find it here and wasn’t sure what it will look like. I’m really excited that it’s exactly what I wanted. I also appreciated your promptness in shipping my package it almost arrived a little bit earlier than expected. Nice quality I highly recommend this product for anybody home and Nice quality I highly recommend this product for anybody home and sleep who needs it. Believe me you will never be disappointed with this product! Check it out!
Other Thoughts
I will need this exact same inner tube very soon for my other tire please keep supplying it in stock !
Inner tube
Great product
Using these tubes in Fat Bike
Pros
Using these tubes in 26x4.4” fat bike tires for general trail use. I weigh about 200 lbs. I have had no issue with them and highly recommend if you want lighten up rotational weight, but still want to use tubes. Or even just these as a spare versus heavier tube
Cons
None
Bruce
Just what I needed to convert 26” fatbike to split tube tubeless
split tube on fatbike
Pros
So far so good for doing split tube "tubeless" on 95mm fat rims. I'd say I have about 3/4 to an inch of extra on either side that I'm too lazy to trim off.
Cons
Didn't magically convert my chaoyang cruisers into a surly bud/lou combo. :(
Tubes
Pros
Good price point
Cons
N/A
26" fat bike usable
Pros
These tubes are now in my 4" tires for 3 weeks of rocks and roots riding. They weigh less and work just fine.
Other Thoughts
I only wish my old girlfriend wasn't such a slut.
Q-Tube 26 x 1.25 48mm Presta Valve Tube
Spare tubes for Catrike Expedition.
Fat Bike split tube
I use this only for a split tube set up on a fat bike. Works great for my application.
Quick Delivery / Item Exactly As Described
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