I finally replaced a ZAMP helmet that I had received when purchasing my old bike with a Shoei RF 1100 Firestrike.

This is a great helmet. The only problem was that it whistled at 60+ mph. Turns out that all you have to do is make a couple of adjustments to make it stop.

  1. Push against these clips on both sides to remove the face shield.
  2. Loosen (do not remove!) these screws. About a half-turn is all you need.
  3. Push the whole shield assembly towards the back of the helmet.
  4. Hold the assembly and tighten the screws in step 2.

That's it! The shield should be held against the gasket properly and there should be no more whistling.