I live in Hartbeespoort, which is about the same altitude as Randburg. My bike definitely likes the 95octane better. I tried 97 octane and could see no difference in performance, only an occasional backfire through the airbox when blipping the throttle. Now I only use 95 octane.
Copper is Cool
Hamicad rad grille & eliminator
Chewy's mirror spacers
Tornado double-bubble screen
Chewy's angled can modification kit