Helibars dont have the pin, genmar risers do, and I *think* blackbird bars might fit, but that might be for the Vtec, cant recall exactly sorry.
I've got helibars on my Frankenviffer, and it has had a lie down on its site, I like how they rotated on the fork tube rather then be stuck in 1 spot due to the locating pin, probably would have snapped otherwise, eaving me stranded.