The Kawasaki KR-1S (KR250C) – Ultra-Rare Two-Stroke Homologation Special is one of the most elusive and uncompromising two-stroke sport motorcycles ever produced. Built as a homologation evolution of the already extreme KR-1, the KR-1S represents Kawasaki’s no-limits approach to lightweight Grand Prix–inspired performance during the peak of the two-stroke era.
Powered by a 249cc liquid-cooled two-stroke parallel twin, the KR-1S was engineered to push the boundaries of what a production 250cc motorcycle could achieve. With aggressive porting, race-derived tuning, and an ultra-lightweight chassis, the KR-1S delivered performance that rivaled — and in some cases surpassed — its better-known contemporaries from Honda and Suzuki.
What truly sets the KR-1S apart is its extreme rarity. Produced in very limited numbers, the KR-1S was never officially exported to many markets and remains exceptionally difficult to find today in original, well-preserved condition. Its combination of raw two-stroke power, minimal electronic intervention, and razor-sharp handling has made it a holy-grail machine for serious collectors and riders alike.
Finished in iconic period-correct Kawasaki racing livery, the KR-1S stands as a reminder of an era when manufacturers built motorcycles with a singular purpose: speed, precision, and mechanical purity.
This is not simply a motorcycle — it is a museum-worthy artifact from the golden age of two-stroke performance.
