The Ultimate Transformation: How a Ducati 900SS Morphed Into a Sleek Café Racer

The art of motorcycle modification holds a unique allure, blending engineering prowess with aesthetic vision to create two-wheeled masterpieces. Among the echelons of custom bike workshops, Seville-based Thor Cycles stands out as a beacon of creativity and skill. Established in 2009, this Spanish workshop has crafted numerous bespoke motorcycles, each one a testament to their dedication to the craft. Today, we delve into one of their most remarkable transformations yet—a 1999 Ducati 900SS reimagined into a stunning café racer.
Originating from Ducati's revered 900SS lineup, the base motorcycle was already a formidable beast. Powered by an air-cooled L-twin engine with a displacement of 904cc, this machine was capable of unleashing 80 horsepower at 7,500 rpm and 57 pound-feet of torque. Coupled with a six-speed transmission and chain final drive, its prowess translated into a blistering top speed of 143 mph and an 11.4-second quarter-mile sprint at 119 mph. Such raw potential made it the perfect candidate for Thor Cycles' ambitious project.
Embarking on this transformation, Thor’s experts commenced with the creation of a new subframe, supporting a chic café racer tail unit and a custom saddle clad in black leather with red stitching—a subtle yet striking contrast. A handmade aluminum license plate holder added a touch of craftsmanship to the rear. The focus then shifted to the heart of the beast. The engine underwent a thorough rebuild, enhanced with new bearings, high-flow K&N air filters, and a revamped clutch mechanism. While the modification preserved the OEM headers, they now exhale through lustrous aftermarket silencers—an auditory delight for enthusiasts.
The pursuit of perfection led Thor Cycles to replace the standard wheels with laced ones from a Ducati GT1000, equipped with top-tier Brembo brakes and shod in high-performance Battlax tires. A Ducati Monster donated its headlight, mounted on bespoke hardware and flanked by Tomaselli clip-ons, adding a dash of elegance to the front end. The pièce de résistance, a 750 Sport fuel tank, was meticulously adapted to sit atop the bike’s trellis frame, completed by a handcrafted front fender—encapsulating the café racer aesthetic.
In the final touches, Bull Garage was entrusted with the bike’s paint job, choosing a matte-grey hue accented with red highlights for a look that is both aggressive and refined. The culmination of Thor Cycles' work on the Ducati 900SS is more than a mere motorcycle; it's a moving piece of art, a testament to the craft of custom bike building, and a beacon of inspiration for the moto-modding community.
Custom motorcycle projects like Thor Cycles’ Ducati 900SS represent the pinnacle of what can be achieved when innovative minds and skilled hands work in harmony. From the selection of the base model to the intricate details of the rebuild and customization, every step in the process reflects a profound respect for the original machine and a daring vision for its transformation. It's not just about creating something new but reinventing and elevating it to a level where it becomes an icon, a benchmark for beauty, engineering, and performance in the motorcycle world.