My wife's Bandit 400 has a 1991 GSX-R750 rear shock installed in place of the horrific stock unit. Except for a slight modification to the lower mounting clevis, it was a drop-in installation. This means that an Ohlins, Penske, Fox, etc. racing shock for a 1991 GSX-R750 will fit just fine. The 3x17 and 4x17 wheels mean that you will run 110/70-17 and 150/60-17 DOT race tires, which are readily available. The 41mm forks are of the fixed-orifice damping rod variety, and their compression orifices are sufficiently large that little if any drilling will be required should you decide to install RaceTech Gold Valve Emulators. Brake pads/calipers are interchangeable with GS500's and EX500's, so finding a reasonable compound should be easy, and the rotors are interchangebale with RF900's and Bandit 1200's.