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About WSM & Walt Siegl

Walt Siegl Motorcycles

High performance.  Timeless style.

Walt Siegl, I’d wager, is the world’s best custom Ducati builder.
— bikeexif

Since 2007, Siegl has been handcrafting some of the most sought-after two-wheeled machines on the planet.
— Man of The World


The WSM team uses the latest in electronics, suspension and braking technology to build machines with exquisite performance, ease of use and safety. Every WSM motorcycle is hand-built to order in Walt’s New Hampshire workshop.

WSM’s first production model is the air-cooled Ducati-based Leggero, using Walt Siegl-designed chassis and bodywork. A Leggero is built to order to your specs and preferences in our New Hampshire workshop.  


In 2015, WSM launched the Bol d’Or, based on zero mile current 3-cylinder MV Agustas. They are built to order.


WSM’s third production model, the Adventure, is built to order for your all-terrain travels.


Launched in 2018, the WSM Superbike is your ultimate street and racetrack weapon. It is built to order and available in two engine configurations.


The WSM PACT is ELECTRIC! A limited series of 8 of this prototype are now being built to order. See the first of this series, on loan to the Petersen Automotive Museum in Los Angeles through November 2019.


Harrisville New Hampshire Walt Siegl

The WSM workshop is the ground floor of this converted textile mill in rural New Hampshire.








About Walt 

At 19, Walt left art school in his native Austria to join a road racing team. He later worked in France as a shunter in a train yard and as a toolmaker and welder in Germany, Austria and Italy. A job with an Austrian steel company took him to Moscow, where he eventually joined the Austrian Foreign Service.

In 1985 he transferred to New York City for a position promoting contemporary Austrian art and culture for the Austrian Ministry of Foreign Affairs.  Walt spent his free time building motorcycles for himself and friends out of a basement across the river in Long Island City.

In 2007 he moved his workshop and his family to an old mill town in southern New Hampshire to build motorcycles full time.