Originally Posted by
qmsdc15
New rims?
I figured air pressure was the force that causes such a split, but assumed significant wear from brake pads had to occur first. I'm putting an iffy wheel on my mountain bike right now to keep me rolling until I get new rims for both bikes. Based on your post, I'm going to inflate to the low end of the recommended psi range.
The second rim, (identical replacement of the first), cracked in one month.
The tire was a 1.9" rated at 50-70psi.
I was running them at 70.
The bike was used only on the street.