Vespa Wideframe tuning crankshaft
The bgm PRO crankshaft is visually based on the purpose-built design of the 50s and offers all the advantages of modern materials and manufacturing methods. With
57 mm stroke and a
110 mm connecting rod, it is perfect for converting all 2-channel engines from 54 to 57 mm and thus enabling the
installation of a tuning cylinder.
We have developed an extremely resilient tuning crankshaft for the highest demands!
The forged crank webs are adapted to the balance factor of the cylinder and piston used for tuning by means of compensating bores and offer excellent smooth running even at a higher speed level of the more powerful engines. The high surface quality not only offers an impressive appearance, the ground surfaces also ensure a long service life for the oil seals and a reliable fit for the crankshaft bearings.
High-alloy forged blanks had to be used in order to produce this elegant
BGM PRO crankshaft for Vespa Wideframe models. This shaft is ideal in conjunction with the BGM PRO 150cc
Vespa Wideframe tuning cylinder. You don't want to tune your old Vespa? This shaft is of course also a clear recommendation as a virtually indestructible shaft for
original engines.
Modern technology for the old engine
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.
- Stroke: 57mm
- Connecting rod length: 110mm
- Piston pin: Ø15mm
- Connecting rod bearing: Needle roller bearing (top and bottom)
Suitable for 125 and 150 wideframe Vespa engines
The crankshaft is suitable for all 125cc and 150cc engines. The 125cc engines only have a stroke of 54mm ex works, so a cylinder designed for 57mm stroke is required here
(BGM1550,
Pinasco Nordkap). The BGM PRO
Vespa Wideframe crankshaft fits the following vehicles:
- Vespa: VM, VN
- ACMA: 125 (70191 - 295883), GL150
- Motovespa 125N, 125S, V56, V58, V72
- Douglas GL2, 42L2, 92L2
Tip: You can find more interesting products for your vintage Vespa in our
Vespa Wideframe catalog DOWNLOAD
Cylinder:
BGM1550
DE | €
