Brand New set of headstock / steering bearings to fit:

Suzuki GSX 1100 E (1980-1986).
Suzuki GSX 1100 S Katana (1982-1984).
Suzuki GSX 1100 ES (1983-1986).
Suzuki GSX 1100 EF (1984-1986).
Suzuki GSX 1100 F (1988-1994).
Suzuki GSX 1100 G (1991-1994).
 
This set of head stock bearings are taper roller style steering bearings and have been manufactured to replace the original set of headstock bearings 09265-25008 and 09265-30005 / 09265-30009 on a GSX1100 for the years and models shown above.

Top bearing sized ID25 x OD47 x WTH15.
Bottom bearing sized ID30x OD55 x WTH17.

All sizes in mm