From Minnesota, PROBLEM SOLVERS's Locking Headset Spacers that shape our "I wish I had". Place this spacer just below the stemLet's set it. After removing the backlash of the headset correctly, fix this spacer. By using this spacer, the fork and headset can be fixed, and even if the stem is removed, there is no need to adjust the headset. You will be glad that it was in every situation such as maintenance, stem setting, packing of wheeled touring, etc.