I somehow misplaced at the field on a bad landing the brake hub to what I thought was a BVM Wheel. When I call BVM, they say their 3" wheel has a brake assmbly that fits over a 3/8" strut, not a 1/2" strut. To get a half inch strut, you have to go to the kingcat size wheel. But I looked at my kingcat, and it is too large a brake assembly. Can someone help me identify what I have so I can get another brake assembly?