Brian and Terri first store was in Osborne Park and I started buying my bike gear there in around 1979. There current store is now in Balcatta and Strett (Their Son) now runs the show although Terri may tell you different.
Cullys has a massive range of gear in stock and if they don't have it can generally get it for you very quickly. Go and have a chat with Ben if you are looking at upgrading. They have a large range of models available and often a Demo bike on the floor to see if you like it! Always let them know you are a PAR (Perth Adventure Rider) for a little bit of extra discount.
Dont forget they are now Triumph dealers and have plenty of those to choose from. If its a jet ski you are after consider a Yamaha knowing you will get local backup and service.
Finally if getting there is a little hard they have a great online site where you will receive the same great Cullys warranties and support.
Look up Strett when you visit next and tell him I recommended him to you!! He might even give you some Ride With Me discount.