High speed non oil bath sprag/clutching bearing

[m in sc]

Does anyone here have direct experience with a clutching bearing/over rev bearing that is rated for 10k plus? this is for the harris bike project. I have found some id have to modify greatly to make work, but looking for a general supplier.

[mixedbikes]

Mark, I am not sure of what you are looking for exactly, but we used sprag bearing/hub on our racing kart. A family we raced with runs an aircraft machine shop facility, and they supply kart parts including sprags.  https://www.hegar4.com/zc150/index.php?main_page=index&cPath=102&zenid=1040b229de1a73ac23d6fce004e1bf06