Modern Vespa

Coming soon.

POWER UP CLUTCH SYSTEM

The Malossi range for Vespas offers extremely high-tech products able to increase performance to such exceptional levels with respect to the standard, that other essential vehicle components will also need to be adapted.

Suffice it to compare a 1978 Vespa PX 200 E which in its standard version develops a power of 12.35 hp at 5700 rpm, and a Vespa "elaborated" with Malossi Kits, which can develop 27.5 hp at 8000 rpm, thus more than double the hp at a much higher speed, in order to understand just how important it is to design a clutch system able to resist the strain caused by performance increases of such proportions!

Malossi POWER UP CLUTCH SYSTEM were born in response to the need to overcome the many problems that inevitably arise when the clutch system technology is not compatible with the other components of the engine. In a traditional clutch, the need to transmit more than double the power to the gears while at the same time turn faster, may cause the bell to sag under the effect of the centrifugal force, in addition to rubbing and deformations that may translate into bothersome and worrying metallic noises. It may even cause the classic slipping of the clutch due to the insufficient amount of friction developed by the original discs, which also impedes the transmission of the entire power generated by the thermal unit, thus partially thwarting its potential.



The two versions of the Malossi POWER UP CLUTCH SYSTEM have common characteristics:

A POWER UP CLUTCH BASKET clutch bell in high-resistance steel with hardening surface treatment to improve resistance to wear, and consequently its service life.
A TIG welded reinforcement ring on the outer bell diameter to efficiently counteract the centrifugal force developed by the higher rotation speed.
4 clutch discs with high-performance friction material.
Recalculated and restricted coupling tolerances, especially in the connection between the diaphragm spring and bell, to eliminate annoying metallic rattling sounds and increase the service life of the component.
The two clutches are actioned by a series of main springs with high elasticity coefficient, 6 in the bell for PX 125 and 7 in the bell for PX 200 E, and are supplied with a set of auxiliary springs, again 6 for PX 125 and 7 for PX 200 E, to be used in high-powered configurations. This regulation allows the user to adapt the clutch to the engine's configuration, thus reaping the benefits at all levels of elaboration and in all possible set-ups.

That's a well written advertisement. With all of the current performance clutches that are CNC'd, I'm a little surprised that Malossi would offer just a simple banded clutch.

same....banded welded basket is old tech. it works, but why not engineer a new stronger cnc 'banded' basket. Other brands have have more options for fine tuning the springs too...

Old tech maybe, but fit for purpose in many cases. Just get a good band welded onto an existing Piaggio seven spring basket if your requirements fall short of the gourmet CNC clutches. The stock P2 clutch can take a lot of power with the right choice of internals, which is more than can be said for the Cosa clutch. Mind you, one with upgraded springs can be a little tough on the left hand.

For 140EUR it's a good alternative, with 14 springs. Big springs mount directly on the basket without the stupid cups...

I would consider it for PnP at ~20hp, but you could just upgrade a stock clutch. For 27.5hp, an extra 100 Euros for the Superstrong is a small incremental cost, given the overall cost to build a powerful motor. Also, it doesn't look like they include the gearing, which you do get in the Super and Ultra strong clutches.

I wonder if those plates are really up to the job with 27.5+ HP?

with a second look it seems this could be a good deal for the price if not needing the top shelf baskets. tighter tolerance on basket, 14 springs to fine tune. I wonder how the Mallossi "high performance friction material" plates compare to the honda cr80 plates?...I have no experience with either, so just asking for the community

I used a spring upgraded P2 clutch, and quickly switched to a Cosa, cuz that left hand was tired on those stiff P2 springs!! Still have the cosa clutch in good shape after few thousand of miles on a Malossi 210 reed motor. Never had an issue with that clutch. I'd use the cosa again with stiff springs and the right plates. I havn't exploded any clutch baskets, so in my experience I cant compare that. I liked the Cosa clutch in daily use.

This appears to be a version of the Pinasco power-clutch but with a brass bushing; 4 plates instead of three.

I do enjoy the Pinasco clutches in stock engines and Pinasco powered widebody engines. That being said, if you are going into heavy HP LF engines then you want a CNC machined, hardened clutch; MMW/etc.