Driveshaft BFA MOTORI "4-gear"
for Vespa 50 2°/N 2°/L/R/S
Alongside Falc, Quattrini and Co. BSG offer some of the hottest tuning parts available to date. The three letters that make up the company name originate from the surname initials of high-end tuner Fabio Begani, racing legend Stefano Scauri and ET-3 wizard Alessandro Graiani. We could stop explaining right here because these guys don't do things by halves. Quite on the contrary BSG and the BSG supported pilots belong to the premier league of Italian scooter racing. Be it in the VPI (Vespa Pista Italia), the CIA (Campionata Italiano Accelerazione) or the new POLINI Cup. With a stunning performance of 48PS, the BSG smallframes was the most powerful scooter on the dyno at the Customshow in Landsberg 2013. It's clear that special components are required to rein such power.
If, while drag racing, you reach speeds of up to 136 kph when passing the 150m mark, then you will probably have already destroyed the driveshaft! To prevent this BSG have included a reinforced Vespa PK 4-speed drive shaft in the set up of their motor. The diameter at its weakest point has been noticeably increased and the mechanical tolerance between the gear selector spider and the shaft itself has been decreased. The special steel used in its construction is called 18NiCrMo5 and is mostly only used for Moto GP components. The surface of the shaft is then exposed to an extensive finishing process for added durability.
This shaft can be used in combination with any of the existing PK selector spiders although the use of the BSG version is highly recommended. This part is compatible with all Vespa 50 2º/N 2º/L/R/S/Special/SR/SS/90 2º/100/125/PV/ET-3/PK 50-125/S/XL/XL2 models. If a PK brake drum assembly is used, this shaft can also be retro-fitted to older Vespa Smallframe motors.
Conclusion: If you have more than 30 PS available you cannot go wrong with this part.
SIP-TIP : Do not forget to order the suitable input shaft, DRT gear cogs and BSG gear selector.
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