Crankshaft -BGM PRO, direct intake, stroke = 57mm, conrod = 105mm- Motovespa 125, Motovespa 150S – gudgeon pin Ø15mm (needle roller bearing), PX-range clutch type, conversion crank shaft for VNA1T-VNA2T offerta

Description

BGM PRO crankshaft for the Spanish Motovespa models made from high-alloy forged blanks.

The crankshaft is designed as a heavy-duty tuning crankshaft, but is of course also a clear recommendation as a virtually indestructible shaft for original engines.

• Stroke: 57mm

• Connecting rod length: 105mm

• Piston pin: Ø15mm

• Connecting rod bearing: Needle bearing (top and bottom)

A major advantage of the BGM PRO crankshaft over an original one is the use of a high-quality connecting rod with needle bearing (instead of a plain bearing bush) and a slotted lower connecting rod eye. This significantly reduces the oil requirement so that the engines can also be run with a 1:50 mixture with today’s high-quality oils without any problems.

The balance factor has been improved by, among other things, a hollow-bored crankpin and is based on the original Tarabusi pistons of the Spanish engines

The crankshaft is suitable for all 125cc and 150cc Motovespa Largeframe and Vespa VNA engines. The 125cc engines only have a stroke of 54mm ex works, so a cylinder designed for 57mm stroke is required here.

The BGM PRO crankshaft fits the following vehicles:

• Vespa: VNA1T – VNA2T

• Motovespa 125

• Motovespa 125N, (M61, M64, 542M, V101M)

• Motovespa 125L, (M62)

• Motovespa 125S, (V60MS)

• Motovespa 150F (V203M)

• Motovespa 150L (V202M)

• Motovespa 150S (V201M)

• Motovespa 150S (502M)

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