Cuts--->  0.25mm/0.50mm/0.75mm

The BGM PRO 177cc is an improved and more powerful version of the proven BGM177 cylinder for Vespa PX125/150, now also compatible with models equipped with electric start.

Everyday Performance
The BGM177 cylinder is designed to offer high performance, durability, and reliability for daily use. By replacing the original cylinder, it is possible to double the power of the standard 125cc engine, with generous torque that allows for smooth riding. The cylinder can also be configured to reach over 20 HP, provided the right carburetor, exhaust, and crankshaft are paired with it. It is therefore an ideal solution for beginners who want to expand performance in the future.

With a displacement of 177cc, the BGM PRO 177 cylinder ensures a safe and relaxed riding experience, maintaining the same reliability and durability as a 200cc engine, operating within the same RPM range as a standard engine. It also offers low fuel consumption and good range. It is compatible with standard components, requiring only a small adjustment to the carburetor jet and spark plug.

Main Features
Material:

The BGM 200cc cylinder is an improved version of the already reliable and powerful original cylinder. Suitable for 200cc engines of the Rally200, PX200, Cosa200, and the Spanish models DS/DN/TX/Iris, the BGM cylinder offers an additional advantage in terms of safety and performance thanks to an exact honing of 9/100 operating distance and slightly larger transfer ports. This makes it slightly more powerful and more fuel-efficient compared to the original.
 

The original head can be used, ready for installation with pistons, clips, piston pins, and base gasket.

PERFORMANCE EVERY DAY The BGM177 cylinder is
a very powerful, durable, and completely
everyday conversion cylinder. It covers a very wide range of applications. Simply
by swapping the cylinder, you can more than double the power of the standard
125cc engine and easily ride the wave of great torque.
Similarly, the exact same cylinder can turn the engine
into a beast with over 20 HP if it finds the right environment (carburetor,
exhaust, crankshaft). Thus, the cylinder offers beginners a
perfect base to be able to expand this, as needed,
more and more. The BGM PRO 177 replaces the original cylinder,
the conversion is simple and easy to reverse if necessary.
With its large displacement of 177cc, the BGM PRO 177 always offers
a safe and relaxed driving experience. The engine is as powerful as a
200cc machine, but with exactly the same reliability and durability.
It achieves this by operating in the same RPM range as a standard engine. The
low fuel consumption and the high range associated with it are