“Bought three , fitted two. One lasted about an hour after inflation before exploding due to large split. Second one has done the same thing after a couple of weeks. One was fitted to the front wheel the other to the rear. Split was on the underside of the tube where it rests on the rim. Rim tape intact & nothing sharp inside either rim. Never had this happen with other tubes. Based on my experience I'd rate these zero out of five”
