Sunlite Thorn Resistant Schrader Valve Tube, 700 x 35-40 (27 x 1-3/8″) / 35mm, Black

Waste of money I have never written a review before but I read reviews about any product I’m going to buy. The reviews for this inner tube mentioned the stem being the weak point and I couldn’t agree more. I have changed a lot of tires and inner tubes in my 66 years and never had a problem like this. The tube lasted less than 40 miles, mostly on pavement. I read the reviews that said there was a problem with the weak stem but I thought they might just not have put the tube in exactly right. So I really…

Solid Heavy Tubes I bike through a few industrial areas and have to cross every imaginable street hazard… potholes, heavy gravel, excess concrete, poorly patched asphalt that resembles Mordor, wires, glass, metal street patches with Frankenstein bolts… you get the picture. Rough road. I’ve gotten quite a few flats from cheap tubes despite having Schwalbe tires and since getting these puppies it’s been clear sailing. They are clearly heavier than typical cheap tubes but that’s sort of the point. The…