Photo: Matt Coleman
When a powerful motorcycle falls in the hands of a talented craftsman, magic follows.
RB Racing’s Harley Borkowski is clearly no stranger to the fascinating art of motorcycle customization. The project we’ll be drooling over today is this Aussie’s take on a 2006 Yamaha XJR1300, and the final result is genuine testament as to why his workshop is among Sydney’s go-to enterprises when it comes down to modifying your two-wheeled companion.
The donor bike for this project packs an air-cooled inline-four engine that prides itself with a colossal displacement of no less than 1,251cc. At about 8,000 revs, this nasty animal is perfectly capable of summoning up to 98 ponies and a crushing torque output of 80 pound-feet (108 Nm) at 6,000 rpm.
A five-speed transmission channels the mill’s wicked oomph to the rear wheel via a chain final drive, resulting in a staggering top speed of 158 mph (255 kph). Long story short, it’s quite safe to conclude that Yamaha’s vicious entity is nothing to mess with.
Borkowski’s awe-inspiring makeover took place over the course of ten painstaking weeks. For starters, the bike’s front end was honored with an R1’s top-grade forks and twin brake rotors to improve handling by a considerable stretch. At the rear, you will find a pair of high-performance piggyback shocks that hail from Gazi Suspension’s beloved range.
The XJR’s inline-four monstrosity received a set of K&N air filters to enable it to breathe a little more freely. These items are joined by a Black Widow four-into-two exhaust and fresh aftermarket mufflers on the opposite end of the combustion cycle.
Each and every factory lighting module has been discarded to make way for a stunning selection of custom alternatives. Furthermore, the cockpit is adorned by a couple of Daytona gauges and clip-on handlebars, wearing braided clutch and brake lines for good measure. In the bodywork department, this bad boy was blessed with a cafe racer-style tail unit that keeps things looking seriously rad.
Finally, the entire structure was enveloped in a menacing color scheme, consisting of black and gunmetal grey. This, my fellow gearheads, is bespoke artwork at its finest!
The donor bike for this project packs an air-cooled inline-four engine that prides itself with a colossal displacement of no less than 1,251cc. At about 8,000 revs, this nasty animal is perfectly capable of summoning up to 98 ponies and a crushing torque output of 80 pound-feet (108 Nm) at 6,000 rpm.
A five-speed transmission channels the mill’s wicked oomph to the rear wheel via a chain final drive, resulting in a staggering top speed of 158 mph (255 kph). Long story short, it’s quite safe to conclude that Yamaha’s vicious entity is nothing to mess with.
Borkowski’s awe-inspiring makeover took place over the course of ten painstaking weeks. For starters, the bike’s front end was honored with an R1’s top-grade forks and twin brake rotors to improve handling by a considerable stretch. At the rear, you will find a pair of high-performance piggyback shocks that hail from Gazi Suspension’s beloved range.
The XJR’s inline-four monstrosity received a set of K&N air filters to enable it to breathe a little more freely. These items are joined by a Black Widow four-into-two exhaust and fresh aftermarket mufflers on the opposite end of the combustion cycle.
Each and every factory lighting module has been discarded to make way for a stunning selection of custom alternatives. Furthermore, the cockpit is adorned by a couple of Daytona gauges and clip-on handlebars, wearing braided clutch and brake lines for good measure. In the bodywork department, this bad boy was blessed with a cafe racer-style tail unit that keeps things looking seriously rad.
Finally, the entire structure was enveloped in a menacing color scheme, consisting of black and gunmetal grey. This, my fellow gearheads, is bespoke artwork at its finest!
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