Originally Posted by gecho

So I went to put some air in my fat bike to see how long it holds air to see if I'd be good to take it for a ride tomorrow. The valve started free spinning as I was attaching the pump. When I pulled the tire off the valve stem had cleaned popped out of the tube, no torn rubber. I could push it back in but it was very loose and could effortlessly be pulled back out. I wonder if the Slime 2 in 1 I used did that. I hadn't used Slime in a tube before and likely never would again even if I hadn't had an issue. I was just going to see if I could get through the season with my worn sidewalls knowing they could keep damaging the tube causing slow leaks. I've never had a presta valve fail that way before.