to smokin blacky, i think i found a reasonable kit at 50 bucks, the bearings dont have the external groove for oil, the size i measured is the same, ive never had the 341 in front of me, but a lot of these from the hx35 to the 351cw have alot in common, im going to add the xtra oiler groove to the bearings, ill post parts pics for comparison, soon.