Tubes bouncy ride?

[masterx1234]

whoa , just changed the inner-tube on my schwinn riverside with bmp kit, and now when riding down the road its as if i have a knot in the tire and riding makes me bounce up and down, its very uncomfortable and causes the spindle to slip half way around the tire, i even completely changed the tire as well, whats going on!, did i change the tire wrong?

 

[bluegoatwoods]

Very likely.

You've probably got it inflated with a bit of the edge of the tire outside of the rim.
Bulging, in other words.

You'll want to deflate it and re-seat it right away. You could have a big "pop" and immediate flat at any moment.

 

[ibdennyak]

BGW's got it. Make sure tire line stays equadistant from the rim as you inflate it. Some tire and rim combinations seem to like to do that. I tried to put a 2.125 tire on a mtn bike rim, and the stupid thing refused to seat. Finally went to a different tire, and it was fine. Of course that was after about 3 tubes slid between the bead and rim very noisily.