Photo: Rui Bandeira
Right, you know how it goes; when a vicious donor bike falls in the hands of an ambitious workshop, magic happens.
When you're dealing with a workshop that goes by the name of it roCkS!bikes, it’s quite safe to assume that you’ll come across some truly ravishing custom two-wheelers. Sure enough, the Portuguese enterprise never ceases to amaze the motorcycle realm with their surreal undertakings, most of which are documented on their social media profiles.
I’ll tell you what; let’s proceed with a closer examination of one such venture, shall we? The project we’ll be looking at today is based on a 2003 model from Yamaha’s XJR 1300 SP range. In stock form, this bad boy is powered by an air-cooled DOHC inline-four monstrosity, with sixteen valves and an astronomical displacement of 1,251cc.
The powerplant is fully capable of summoning up to 107 untamed ponies at 8,000 rpm along with a vicious torque output of 74 pound-feet (100 Nm) at about 6,000 rpm. A five-speed transmission channels this mighty force over to the rear 17-inch wheel by means of a chain final drive, resulting in a generous top speed of 136 mph (218 kph).
For their project, Portugal’s moto surgeons kicked things off by installing a Kawasaki ZXR’s inverted forks onto the bike’s front end, along with a set of Brembo calipers. At the rear, suspension duties are taken good care of by dual shock absorbers from Ohlins’ range. To further improve handling, the XJR’s hoops were enveloped in top-grade Dunlop Sportmax tires that’ll guarantee ample grip on the tarmac.
In the powertrain department, Yamaha’s beast received bespoke CNC-machined velocity stacks and an ominous four-into-two-into-one titanium exhaust system wearing thermal wraps. To round out the performance upgrades, the team went about equipping a fresh oil cooler for good measure.
Additionally, the cockpit is adorned by a Motoscope Pro gauge that hails from Motogadget’s beloved inventory. At the same time, the custom shop raided Rizoma’s catalog to obtain new turn signals and an aftermarket license plate holder. The latter is attached to a custom tail section that follows the lines of XJR’s standard gas tank. In between, you will find a one-off tan leather saddle keeping it classy.
Long story short, we absolutely dig this sinister piece of two-wheeled machinery!
I’ll tell you what; let’s proceed with a closer examination of one such venture, shall we? The project we’ll be looking at today is based on a 2003 model from Yamaha’s XJR 1300 SP range. In stock form, this bad boy is powered by an air-cooled DOHC inline-four monstrosity, with sixteen valves and an astronomical displacement of 1,251cc.
The powerplant is fully capable of summoning up to 107 untamed ponies at 8,000 rpm along with a vicious torque output of 74 pound-feet (100 Nm) at about 6,000 rpm. A five-speed transmission channels this mighty force over to the rear 17-inch wheel by means of a chain final drive, resulting in a generous top speed of 136 mph (218 kph).
For their project, Portugal’s moto surgeons kicked things off by installing a Kawasaki ZXR’s inverted forks onto the bike’s front end, along with a set of Brembo calipers. At the rear, suspension duties are taken good care of by dual shock absorbers from Ohlins’ range. To further improve handling, the XJR’s hoops were enveloped in top-grade Dunlop Sportmax tires that’ll guarantee ample grip on the tarmac.
In the powertrain department, Yamaha’s beast received bespoke CNC-machined velocity stacks and an ominous four-into-two-into-one titanium exhaust system wearing thermal wraps. To round out the performance upgrades, the team went about equipping a fresh oil cooler for good measure.
Additionally, the cockpit is adorned by a Motoscope Pro gauge that hails from Motogadget’s beloved inventory. At the same time, the custom shop raided Rizoma’s catalog to obtain new turn signals and an aftermarket license plate holder. The latter is attached to a custom tail section that follows the lines of XJR’s standard gas tank. In between, you will find a one-off tan leather saddle keeping it classy.
Long story short, we absolutely dig this sinister piece of two-wheeled machinery!
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