CT90 Parts

The Honda CT90, also known as the Trail 90, is one of the most iconic small-displacement motorcycles produced by Honda. Originally introduced in 1966 as an evolution of the Honda C200 and CT200, the CT90 was designed for off-road adventures and rugged utility use. It features an 89.5cc four-stroke single-cylinder engine, a semi-automatic transmission with a centrifugal clutch, and Honda’s unique dual-range sub-transmission, allowing riders to tackle both paved roads and rough trails with ease.

Over its production run from 1966 to 1979, Honda refined the CT90 with improvements in suspension, carburetion, and electrical systems. Major changes were made fromthe K5 - K6 models, including a change in throttle design, removal of the left handlebar rear brake lever, a reversed shift pattern, different handlebar switches and levers, and a changed speedometer cable arrangement. 1978 to 1979 models also featured a new carburetor design that would carry over to the later Honda CT110. The CT90 was eventually replaced by the Honda CT110 in 1980, continuing its legacy as a go-anywhere, do-anything motorcycle.

For Honda CT90 Technical Information, Support Guides, and Factory Manuals, browse our Knowledge Base.