The Hope Head Doctor Stem Cap combats the problem of having to re-tighten your headset; two aluminium wedges pull together and expand inside any size of steerer giving you a solid thread to pull the stem down.
The Hope Head Doctor combats the common problem of having to re tightening your headset; two aluminium wedges simply pull together and expand inside any size of steerer giving you a solid thread to pull the stem down. Sound simple? It is!
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