A bicycle may have a combination comprising a wheel and a rim with a hole in the rim, an inner tube with a valve stem in the hole in the rim, and a tire. If the air pressure is low in the inner tube and the bicycle is ridden with the wheel rotating, the valve stem and the wheel may move with respect to each other. The valve stem is in the opening in the rim. With the low air pressure in the inner tube, the inner tube may slip or move with respect to the rim. The slippage or moving places a stress on the valve stem with the possibility of damaging the inner tube and valve stem and causing the air leak as the valve stem is not definitely positioned. The subject invention is a decorative stabilizing device for definitely positioning the valve stem with respect to the rim and lessening the possibility of causing an air leak in the bicycle inner tube.