Vespa ET 3 [1976-1983] - crankshaft with pin ø 15, rod 97, stroke 51 mm and diaphragm valve and cone ø 20

MALOSSI crankshaft for Vespa ET 3 from 1976 to 1983

The MALOSSI crankshaft is tailored to the Vespa ET 3 in the entire model year range 1976-1983. The design combines a ø15 pin, a 97 rod, a 51 mm stroke, a diaphragm valve and a ø20 cone.

Technical features

• Crankshaft with pin ø 15
• Bar size 97
• Stroke 51mm
• Diaphragm valve
• Cone ø 20
• Full collar version for engines with diaphragm inlet
• Hardened and vacuum melted aeronautical grade steel
• Connecting rod with “viper head”

The full fret design is intended for Vespa engines modified to have a reed valve intake instead of the original rotary valve. Tungsten inserts ensure that the shaft is balanced. The specially shaped rear of the drive side supports the intake of fresh gases into the lower housing.

Vehicle assignment and assembly instructions

Suitable for Vespa ET 3, built between 1976 and 1983. A separate mounting kit is required for installation in the Vespa ET 3. In addition, the crankshaft seat on the ignition side of the engine housing must be drilled to ø 87.

Usage

The product is intended exclusively for competitions at the designated locations in accordance with the regulations of the relevant sports authorities. Improper use is not intended.