HIAORS 2.25/2.50-17 70/100-17 Dirt Bike Tube Motorcycle Inner Tire Tube Straight Valve Stem for 110cc 125cc 140cc Motorsports DR90 Dirt Runner 90 Pit Dirt Trail Bike (2 Pack)

I put two new tires and tubes on the next day one was flat. I took the tube out and there was a leak at the edge where the valve had been attached. Instead of going through the trouble of sending it back I cut a hole in a tire patch and glued it to the tube sliding it over the valve so far it has held.

Amazing I buy again