I have a QR axle in my King hub and would like to swap for a bolt on. I know many of you have converted to an EBB so perhaps someone would like to trade. Let me know.
call king and ask for the bolt-on axle upgrade, i think they call it the "heavy duty axle upgrade".
i tried ordering one with king for my classic hubs MONTHS (maybe close to a year?) ago and they didn't have it in stock. they told me that they would call me when they did. it's been a LONG time and still no call. i think they told me price was around $40 for the axle and fun bolts. with the price increase they have done on all products, i betcha that this upgrade would be close to $60 now.
hopefully, if you're willing to pay $60 or so, king will have the upgrade in stock.