The most intricate custom builds have a single goal: to break the muold and redefine what’s possible. The 1972 Yamaha XS 650 built by Purpose Built Moto is a prime example of such a mission. Starting with an engine swap and a frame with potential, this bike emerged as a lean, mean, performance chopper. Join us as we take a ride through the thrilling journey of this remarkable build.
A Swapped Engine and a World of Potential
The foundation of this project lay in an engine swap, a bold move driven by a desire for performance. The builder, already armed with a great engine but seeking a fresh challenge, traded with a customer whose bike’s engine had seen better days. With this new heart for the project, the stage was set for something extraordinary.
The Quest for an Ultra-Light Performance Chopper
What sets this build apart is the builder’s vision: to create an ultra-light, performance-oriented chopper. It’s a departure from the usual requests that Purpose Built Moto receives, making it an opportunity to stretch creative muscles and push the boundaries of what’s possible.
The result is a machine that defies convention. With an ultra-light frame and wheels, the bike weighs in at a mere 155kg when wet. That’s a testament to the commitment to creating a performance powerhouse.
Technical Marvels Beneath the Surface
Let’s delve into the technical wizardry that makes this chopper a performance beast. It boasts Jonich Wheels that not only look stunning but also contribute to its lightweight design. The custom ultra-narrow Sportster front end enhances handling and responsiveness, ensuring that this chopper is more than just a pretty face.
At the heart of the machine lies a 700cc XS650 motor, fine-tuned for racing. It’s a powerplant that promises adrenaline-pumping rides. The suspended seat, complete with a custom linkage and shock, adds comfort to the equation, proving that performance doesn’t have to come at the expense of ride quality.
The bike proudly sports a banana tank and a Cooper Smithing rear fender, adding to its distinctive style. The hand-made sissy bar and tail light are testaments to the builder’s dedication to crafting every detail. The chopper’s unique character shines through with a foot clutch and suicide shift setup, harking back to a bygone era of riding.
The Artistry of the Sissy Bar
One standout feature of this build is the sissy bar, a true labor of love. It took an impressive four solid days to design, fabricate, and polish this intricate piece. The sissy bar not only adds to the chopper’s aesthetics but also serves as a testament to the builder’s commitment to excellence.
Performance Upgrades for the Ultimate Ride
Underneath the sleek exterior lies a host of performance upgrades designed to unleash the full potential of this machine. With 700cc high-compression pistons, a ported and polished head, oversized valves, performance ignition and coils, a Barnett Clutch, and Mikuni flat-slide carbs on custom intakes, this chopper is a true powerhouse on two wheels.
In conclusion, the 1972 Yamaha XS 650 by Purpose Built Moto is not just a motorcycle; it’s a performance work of art. It’s a reminder that the pursuit of performance and style can lead to exceptional results. This chopper challenges conventions and sets a new standard for what a custom motorcycle can achieve. It’s a testament to the builder’s vision, dedication, and unwavering commitment to pushing the boundaries of what’s possible in the world of custom bikes.