It appears that I need a new tube even though I can't locate a leak when held under water. My question is the tube we use the 11/400x5 tube displayed in this link?
http://www.vansaircrafttires.com/products/11{47}400%2d5-Inner-Tube.html
Thanks in advance
http://www.vansaircrafttires.com/products/11{47}400%2d5-Inner-Tube.html
Thanks in advance