Still using....
1988 Deore 6 speed Thumbies
1988 Deore U-brake and 4 finger Levers (I'm finally replacing them for asthetic reasons - not because they don't work)
1991 Hope front hub on it's first set of bearings
1993? Mag 21's - Unserviced, pumped up once - I think keeping the boots on helped these survive although they were never actually raced.