Race lite
1" head tube
Milled headtube for weight reduction
Gussets on top tube, down tube, seat tube, seatstays
Two piece rear brake mounts
"Sleeved" seat stays up to about 95 then standard seat stays
Race OR 1992ish on wards
As above, but no milling on headtube
Early race OR ( pre introduction of race lite)
Riveted cable guides
Horizontal dropout
Privateer
1" headtube til 1999 model year then 1 1/8"
Gussets on top tube and down tube only. Less pronounced than race or race lite.
Standard ( not removable) rear brake bosses
All have 26.8 seatpost except 1999 privateer which is 27.0
Geometry is common and there is bugger all difference in ride and handling.
Race lite is still the coolest though