Tuning cylinderkit, BGM PRO, Vespa 1953-1959, VM, VN, ACMA (ab Motor V55), VB1T, VGL1T, VL1T

Tuning cylinder 150ccm BGM PRO suitable for Vespa VM, VN, VB1, VGL1, VL1

BGM PRO cylinder with 150ccm at 57 mm stroke suitable for all 2-channel engines.
The cast iron cylinder has three overflows and is suitable for all wideframe engines with 57 mm stroke. On the 125cc engines with 54 mm stroke the cylinder with the 57 mm crankshaft also fits without problems.

The third channel on the cylinder is closed by a supplied aluminium foot gasket spacer and the cylinder is scavenged via a corresponding recess in the piston. This means that no modifications to the engine housing are necessary.

• Displacement: 150 ccm

• Stroke: 57 mm

• Piston: Ø = 57 mm

• Piston rings: 2 x 1,5 mm

• Cylinder material: cast iron

• Cylinder head: CNC milled from solid aluminium with additional cooling fins at the bottom

• Channels: 3

• Spark plug: short thread (e.g. NGK B8HS, Bosch W3AC)

• Ignition timing: 18-19

The cylinder helps the very old Vespas to significantly more pull and top speed. Quick acceleration, even by today's standards, is the BGM PRO 150's main discipline. 8-10 hp are available at the rear wheel, depending on the configuration, and a cruising speed of 90 km/h and more is possible without sacrificing reliability.

The 23mm CP carburettor with BGM PRO intake manifold (see accessories) is the ideal complement.