Clutch BFA MOTORI FPX4

for Vespa 125 VNA-TS/
50 VBA-Super/
80-200 Rally/
X80-200/
E/
usso/
5/
osa
3 discs
4 plates
aluminium CNC
6 spring(s)
th 2mm

TUNING RACE – for professionals
Product description
High-tech clutch for Vespa largeframe models, with improved functionality and power transmission.

The developments in recent years leave very little to be desired for the Vespa largeframe riders. CNC machined clutches, such as the Ultrastrong. Race or MMW
Superstrong easily master all the power you transmit through them. They are easy to operate, very reliable and have successfully managed power outputs of over 50PS! But there is always room for improvement.
Minimal mass on the crank.
Five clutch friction plates.

The operation principle of this clutch has been reversed. This involves less mass directly mounted on the crankshaft and also has the effect that less force is required for its operation.
The construction of the clutch
In order to reverse its principle method of operation a considerable amount of constructional re-engineering was necessary. The clutch cog is from the earlier PX clutch, but is in this case, bolted into a CNC milled aluminium basket. A needle bearing is now situated between the inner and outer clutch baskets, instead of the original bronze bushing. The force for its operation is now directed through a bearing-equipped pressure plate and all friction and separation plates are produced using aluminium. Similar to the Vespa smallframe clutch, the lower plate now accepts six clutch springs. Additionally the delivery also includes a set of three even stiffer springs, in case more force is required. The entire assembly can be closed with the standard PX200 clutch cover, with minor modifications being sometimes necessary. The friction plates originate from a CR80 motorbike engine.
The clutch is delivered with 2x2mm and 1×1.5mm steel plates. The 1.5mm plate should be installed as the top one, i.e. next to the clutch cover. The scope of delivery includes 6 standard and 6 hard springs. BFA recommends testing the 6 standard springs up to 35HP and, if necessary, partially or completely installing the harder ones.
Varieties of currently available inverse clutches:

CRIMAZ
BFA FPX4
SIP-BFA
SIP
Friction Plates
3,5
4
5
4
Plain Plates
3
3
4
3
Springs
8
6
6(+6)
8
12-times screwed gear
–
–
x
X
Gear cog PX old”
x
x
–
–
Primary drive included
–
–
x
x
Conclusion
: This clutch, from BFA, for Vespa largeframe engines represents a state-of-the-art, high end solution ensuring a clean, reliable and easily operable drive-train connection between the motor and gearbox.
Technical specification:
CNC machined aluminium outer basket.
Bolt attachments for PX clutch cogs.
CNC milled aluminium inner clutch basket with a bolted cover plate.
Needle bearing between inner and outer baskets.
Aluminium separation plates.
Four CR80 clutch friction plates.
Six clutch springs and three stiffer types for adjustment.
All plates replaceable while clutch is installed.
Compatible with the ORIGINAL PX200 clutch cover
.
The best set up ? our?TIP:
To further improve clutch feel and control we recommend the inclusion of our Performance clutch operation cable (#94180440).
BFA recommend a 10W30 gearbox oil (#M7614052).
The CRIMAZ ‘Rallino’ push rod (#87724000) perfects the operation of this clutch.