One thing that the later model Steamers have in common with the Girly Tigers is the Steering Head Bearings are the same and the procedure to replace them is damn near identical , for a look see follow the link below
http://tigertriple.com/forum/index.php/topic,4611
For anyone contemplating this the bearing numbers are :-
Top 6205DDUNR
Bottom 32006JRRS
Should be available from a good bearing supplier.