threadless headset on OPC bike?
 

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. :)

I have yet to see a BMX threadless setup in that diameter.

I used to race BMX and work on BMX bikes extensively, they were either
1" Threaded or Threadless (road standard)
1" Threaded (BMX/OPC Standard)
1 1/8" Threadless.

They seemed to have skipped the Threaded 1 1/8 that certain MTB's were using circa 1994.