Warning: Cheapo bike content! Don't read this post if you are offended by Murray etc. bicycles.
I notice on Sheldon Brown's headset crib sheet that BMX/OPC (32.7 tube ID) appear both in the threaded and threadless tables. Were threadless steer tubes ever used on OPC bikes? I am considering swapping a 1" threadless fork onto a OPC bike and the crib sheet seems to suggest a headset might exist for this setup. Kindly spare me the lectures about putting nice parts on a worthless bike.