For future reference, on ATC steering bearings, they are just loose balls and high quality bicycle loose bearings can be bought in small bags for a modest price. There's absolutely no need to buy the OEM Honda bearings or overpay for some low quality generic ATC ones from Amazon or Ebay. It's insane that people are able to sell used ones for more than high quality new ones cost.
I'll have to go and look at the size, but I keep a bag of them for ATCs. Quality bearings, like for Dura Ace level Shimano (Japanese company) hubs aren't expensive at all.
The story of three wheels and a man...