There are two different kinds of seats for the bolts. The tapered kind is conical in shape, where as the balled kind is shape spherically. I believe the stock bolts are tapered. Make sure the wheels have the same shaped holes, or you'll have to buy new bolts to fit the type of seat on your wheels. Inspect your wheels carefully, I don't know the reason why your bolts are sticking out if the wheels are made for the X. Ask the wheel manufacturer; is it DPE by any chance?