History of Bugatti Part 3-Type 35... autosmithcar.com
The original model, introduced at the Grand Prix of Lyon on August 3, 1924, used an evolution of the three-valve 2.0 L (1991 cc/121 in³) overhead cam straight-eight engine first seen on the Type 29 . Bore was 60 mm and stroke was 88 mm as on many previous Bugatti models. Ninety-six examples were produced. This new powerplant featured five main bearings with an unusual ball bearing system. This allowed the engine to rev to 6,000 rpm, and 90 hp (67 kW) was reliably produced. Solid axles with leaf springs were used front and rear, and drum brakes at the back, operated by cables, were specified. Alloy wheels were a novelty, as was the hollow front axle for reduced unsprung weight . A second feature of the Type 35 that was to become a Bugatti trademark was passing the springs through the front axle rather than simply U-bolting ...