I bought the Continental 1.752.5 MTB 26 tubes with the Presta valves to install with my Michelin Country Rock 26 1.75 tires that I bought at WesternBikeWorks. I store my bike in my home, but I haven't had to add air in the tires for 3 weeks and the pressure is still the same. With my old tubes, I had to add air weekly. These tubes have exceeded my expectations. Will buy again!
Can't really review the tubes other than to say I received one that was defective and Western Bikeworks sent a new tube out right away. Excellent customer service. Looking forward to doing business again. Suspect that the tubes will work great. 5 stars for the bike shop....and if I don't edit the review at a later time, assume 5 stars for the tubes also.
The Continental TourMTB 26 Tube has been amazing. Has held air for months now and no need to pump them up again. I have been storing my bike in my home so I'm sure that helps, but my old tubes required refill after a week. These tubes are much better. I've been riding on pavement and on gravel roads and no punctures or problems.
These tubes are made very well and I have not had any issues with them unlike other brands. It is really handy they come with a small nut to screw down around the value stem to help it in place. It is a big help when trying to inflate a tire.
With Covid19 it seems that I'm resurrecting older bikes for family to ride. It's usually best to start them off on mountain bikes because they are more stable to ride, especially for newer or long away riders. Getting rid of the old 26 heavy mountain bike tires is the first step. I stick with Continental tubes because I'm happy with Continental tires.
These are quality inexpensive tubes. The valve stem is threaded all the way to the base and there is a nut that goes over the threads. This gives you the ability to secure the valve stem in place making installation incredibly easy.
The threaded stem is a treat. It makes it simple to fill, since the valve wont squeeze back into the wheel. Just wish continental would make them for my 29. Not into the presta thing. Try finding a presta set up in the middle of Costa Rica. First thing I do is drill out my tubeless to go old school. Peace