With a life long passion for bikes and an endless desire to create custom motorcycles using "hand made" techniques, Oficina MRS owner Mario began the build with an aim to "transform a normal bike into something unique". From the original bike only the frame and engine remain and even they have undergone significant modification. Every modification was made with an aim to increase power, minimise weight and improve overall performance, while celebrating the Cafe Racer style and aesthetic.
"The engine is a cocktail of parts from a Honda CB750 RC42 and a Honda CBX 750 RC17. I couldn't find carbs for the RC42 engine so I custom fit a set of Keihin CR 35mm to increase the engines power. With the increase in power I also had to improve the engines lubrication of the cylinder head which was done using the solid brass lines that you can see running up the right of the engine. I also added an external Active ST13 oil cooler to keep internal temperatures down and complimented the carb uypgrade with a complete titanium exhaust system by Asahina Racing."
"The stock Honda forks have been replaced by a Showa 43/25 mm system which have been mounted using a custom top clamp. Renthal clip-on handlebars were installed along with a set of turn signal that I also made and the engine start switch was drilled into the top clamp rather than adding more clutter to the bars." The tachometer was also designed and built by Mario along with the various supports and struts that hold the fenders and brake components in place. To replace the hefty Honda cast rims a set of light weight Ducati hubs were laced to Excel Takasago rims wrapped in Michelin rubber and the factory swingarm was replaced with a Kawasaki Zephyr 1100, which has also been modified to double as an oil breather catch can.
The most striking element of this build is of course its bodywork. Mario worked with his good friend, Augusto Ribeiro to develop a unique tank and tail combo using the most lightweight and strong materials available. On the outside the carbon fiber can clearly be seen under a thick coat of clear but what can't be seen is the extra lining of kevlar that the pair incorporated into its design. So to say that this Honda CB750 is bulletproof wouldn't be an analogy, it could actually be the truth!
Want to grab some cool custom motorcycle gear and accessories?
Head over to 100mph.com.au