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- Vespa Classic
- Cylinder - BFA/FRT, 244 cc (72x60mm, 120mm connecting rod)—diaphragm intake, air-cooled—for C200/BFA engine cases—Vespa V50, PV125, ET3, PK50, PK80, PK125
High-displacement BFA/FRT 244cc cylinder for performance-oriented Vespa small-frame engines with C200/BFA engine cases. Designed for a 72 mm bore, 60 mm stroke, and 120 mm connecting rod. The cylinder features a diaphragm intake and is classically air-cooled. Compatible with corresponding engine setups based on the Vespa V50, PV125, ET3, as well as the PK50, PK80, and PK125.
The BFA/FRT 244cc cylinder is designed for performance-oriented Vespa Smallframe engines based on the C200/BFA engine case. With a 72 mm bore and 60 mm stroke, this setup achieves a displacement of 244 cm³, placing it well above that of traditional Smallframe designs.
The cylinder is designed for a crankshaft with a 120 mm connecting rod length and features a diaphragm intake. Fuel and air delivery is thus controlled by the crankshaft, independent of a traditional rotary valve system.
With a displacement of 244 cm³, the BFA/FRT cylinder follows a consistent big-bore approach. The large displacement provides the foundation for high torque and power output and is designed for engine setups in which the engine case, crankshaft assembly, intake system, clutch, and transmission are tuned to a correspondingly high performance level.
The integrated diaphragm intake controls the fresh air supply on demand, thereby enabling a performance-oriented design of the intake system. Especially with high-displacement small-frame engines, this concept offers a great deal of freedom in tuning the carburetor, intake tract, and exhaust system.
The cylinder is designed for use on the C200/BFA engine block. It is therefore not a classic plug-and-play cylinder for standard Piaggio small-frame engine blocks, but rather a component for BFA/FRT engine configurations built accordingly.
Note: Due to the engine’s unique design, all components of the assembly must be matched to the cylinder and the C200/BFA engine case being used. Before installation, the crankshaft, connecting rod length, intake system, exhaust system, clutch, and transmission should be checked for compatibility.
