Thornton Hundred has unveiled the TF450E Supermoto, a custom interpretation of Triumph’s TF 450-E Enduro. Instead of chasing more engine performance, the build redirects the motorcycle towards road use through a new wheel package, revised gearing, integrated lighting and bespoke bodywork. The Triumph engine itself remains unmodified.

A smaller wheel package with revised gearing

The standard 21-inch front and 18-inch rear enduro wheels make way for custom Rotobox carbon wheels measuring 17 x 3.5 inches at the front and 17 x 6 inches at the rear. That wider rear wheel pushed the chain and sprocket 5 mm outward, while the rear brake calliper also required a custom mounting bracket.

Thornton Hundred altered the gearing to suit the smaller wheels and to give the motorcycle longer ratios for more relaxed road riding. The rear sprocket grows from 43 teeth to 49. Jody Millhouse put the expected top speed at around 115 mph. There are no engine changes; James Joseph said the decision was deliberate because the Triumph power unit is already strong in standard form.

A front end built around the lighting

The visual centrepiece is a single 3D-printed structure combining the headlight plate and front mudguard. Three small arrow-shaped LEDs are integrated into the front cowl as position lights. Larger lamps sit on either side of the forks for the dipped and full beams, while single LED indicators are tucked close to the sides of the headlight plate. Small rear LEDs provide the brake and rear lighting.

The styling began with the look of 1990s supermotos. Jody Millhouse also pointed to the Aprilia SXV 550 as an influence, particularly for the front mudguard’s pointed profile. Other bespoke details include a carbon tank cowl and custom battery and airbox panels with vent features. The bench seat is trimmed in soft suede and rests on a custom 3D-printed rubber component.

From a personal build to a commercial direction

The team completed the design and construction in a little over a month, although the concept had been under consideration for roughly three months. Thornton Hundred is better known for custom bobbers and other machines with vintage influences, but it had already explored supermoto through a custom Stark Varg built for the Malle Beach Race.

The TF450E Supermoto is the company’s first official attempt to commercialise this part of its motorcycle work. The completed machine has already been sold, and Jody Millhouse said another one will be needed for personal use. Thornton Hundred has also produced a video series documenting the build, with its first episode released. The project’s significance lies in how far the character of the TF 450-E can be redirected without altering its engine: the transformation comes from the wheels, gearing, lighting and carefully integrated bodywork.