Originally Posted by
llmercll
Unfortunately one of the bolts that adjust stem angle is stripped and I can't loosen it =(
That's what I thought when I tried adjusting one of those stems too. If I remember correctly, only one side is meant to loosen. The other side stays put. Try loosening one side and taking the bolt completely out. It took me a while to figure the stem out, I suspect you may be in the same situation.