1970 CT90, I disassembled the front wheel, replaced the tire with new rubber, knocked out the old bearings and installed new ones, installed new seals, tore apart the hub and cleaned everything up, installed new brake pads and re-assembled the unit.  I'll tell you what, getting those bearings out of the front wheel hub was one tough deal.  I serviced the front shocks last weekend so pretty much everything on the front end is good to go.  My 1970 "Red Man" has 7,500 original miles on it and it was rode pretty hard over those miles.  I have set my sites on pretty much going through everything to make certain it is up to specs.