Kyle Smythwrote a review of Q-Tubes 26in Presta Mountain Tube on July 31, 2017
Familiarity: I've put it through the wringer
Q tubes have been the industry leader for as long as I can remember. Great quality and price. If you aren't going to convert to tubeless or just need to have a proper spare in the bag, I would highly recommend these tubes for your needs. I have these on a bike with 26x2.35s and they are holding up just fine.