<span style="font-size: 9pt; font-family: 'Arial','sans-serif'">i just sent a couple of oneway bearings back to infernosonly.com that were meant for my inferno but they were to big for my rotostart. they are for 8mm shafts and i believe the hex size on those are 16mm i believe.pretty cheap for one way bearings $7.50 ea... O.S. are pretty good to but on the pricier side, same size shaft but have a smaller hex on them 14mm<o></o></span></p>