Originally Posted by recumbentbill
I just had my second flat. Not from a nail or some other puncture but from the tire slipping on the rim which results in the valve stem being ripped . I keep the tire [Armadillo and bontranger thorn tube] properly inflated but after awhile i notice the valve stem slowly moving/slanting prompting me to stop and let the air out and pull the tire till the valve stim is sticking out straight then inflating to recommended psi . Never had this problem on a regular bicycle. This problem is even worse now that my bike has a shift kit. Any thoughts---suggestions on how to keep the tire from slipping
it's the bontranger tubes!!!!!
AFTER WAISTING A LOT OF MONEY ON THE SAME PROBLEM i FINALLY REALIZED...DUH! same tubes same problem time and again....Schwinn self-sealing tubes, CAN'T BEAT EM!