This is from the site Bring a Trailer (https://bringatrailer.com/) ...
This 1957 Ducati 175 TS was purchased from and refurbished by Ducati tuner Reno Leoni for the 2007 Motogiro d’Italia. Powered by a bevel-drive SOHC 4-stroke single with a 4-speed transmission, the bike was rebuilt in 2007 and modified with gearing suitable for touring events. The bike was serviced by Leoni again in 2016, and new clutch plates, cylinder gaskets and tires were fitted. The seller has owned the bike 12 years and has added approximately 8,500 miles on Moto Giro events in Italy, Monaco, and the Americas. This 175 TS is being offered with a clean Indiana title in the seller’s name.
The 175 TS (Turismo Speciale) was a de-tuned version of the 175 Sport with touring handlebars, fuel tank, and fenders. This example is finished in red and white, and features include a 4.5 gallon tank and touring handlebars with bar-end mirrors.
No speedometer is provided. The true mileage is unknown, but the seller estimates 8,500 miles have been added since the rebuild in 2007. 18″ chrome Radaelli wheels wear Ceat tires that were replaced in 2016.
The 175cc SOHC four-stroke single produced 11 horsepower when new and is equipped with a 22.5mm Dell’Orto carburetor. A bevel drive window is fitted to the cam cover, and the four-speed transmission features a heel and toe shift lever. Rebuilt in 2007 by noted Ducati specialist Reno Leoni, the bike was modified with smaller sprockets for lower RPMs on long distance events. In 2016 Leoni service the bike again with new clutch plates and cylinder head gaskets.
The engine case wears a Reno Leoni inscription, and photos of Leoni with the bike are provided in the gallery below.