For models with Electric Start

Additional flywheel masses: allow you to customize the ignition for your vehicle based on the vehicle's setup, further increasing the moment of inertia.

Dimensions--> Ø 134x105x18
Moment of inertia--> 19 Kg/cm2
WARNING--> Not compatible with Malossi items: 5516956 and item 5517175

Sintered bronze bushing B50
Bronze washer
Spring push disc

For original clutch bell
and Malossi POWER UP CLUTCH SYSTEM.

Made of high-strength steel with a surface hardening treatment to increase wear resistance and, consequently, durability.
A reinforcement ring welded with TIG technique on the outer diameter of the bell to effectively counteract the centrifugal force developed by the higher rotational speed.

For original clutch and Malossi POWER UP CLUTCH SYSTEM.

High-strength steel with surface hardening treatment to increase wear resistance and, consequently, durability.

Reinforcement ring welded with TIG technique on the outer diameter of the bell to effectively counteract the centrifugal force developed by the higher rotational speed.

For original clutch and Malossi POWER UP CLUTCH SYSTEM.

TECHNICAL FEATURES:
Clutch base plate: Hardened steel, high toughness, optimal for components with highly dynamic stresses with a tensile strength of 1000 MPa. Surface hardened (LCN) to 300HB, depth 10-25 µm. Main spring seats machined with offset relative to the clutch bell to ensure intrinsic torque, eliminating any play. Auxiliary spring seats machined aligned with the clutch bell. Tight tolerances between the spring push disc tabs and the clutch bell eliminating clutch noise and increasing durability. Surface induction of the bronze bushing coupling section. Hardened to a depth of 1.5 mm, 60HRC, improving durability. For original clutch bell and POWER UP CLUTCH SYSTEM Malossi.

TECHNICAL FEATURES

Clutch base plate:

Tempered steel, high toughness, optimal for components with highly dynamic stresses with a tensile strength of 1000 MPa.

Surface hardened (LCN) to 300HB, depth 10-25 µm.

Main spring seats machined with offset relative to the clutch bell to ensure intrinsic torque, eliminating any play.

Auxiliary spring seats machined aligned with the clutch bell.

Tight tolerances between the spring push disc tabs and the clutch bell eliminating clutch noise and increasing durability.

Surface induction of the coupling area of the bronze bushing. Hardened to a depth of 1.5 mm, 60HRC, improving durability.

For original clutch bell and POWER UP CLUTCH SYSTEM Malossi.

Painted in black

Painted in black

Painted in black

Painted in black

The PINASCO TOURING muffler has been designed to enhance the engine's performance both at low and high revs while maintaining the same level of quietness. The innovative design that “breaks all current patterns” has been studied to achieve the right gas expansion, which significantly increases engine performance (about 4HP) even at full stretch.

Main feature: Lengthens the ratio without the need to disassemble the clutch bell, increasing the speed by 10 km/h

The Malossi range for the Vespa offers products with extremely high technology capable of developing performance increases
so exceptional compared to the standard, that it requires the adaptation of other fundamental components
of the vehicle.

Just compare a Vespa PX 200 E produced in 1978, which originally develops a power of 12.35 HP at 5700 RPM, with a Vespa "tuned" with Malossi Kits, which can develop 27.5 HP at 8000 RPM, or more than double
HP at an extremely higher rotation speed, to understand that it was absolutely essential to design a clutch unit capable of withstanding the stresses due to a performance increase of such proportions!



The POWER UP CLUTCH SYSTEM Malossi clutch units are designed to provide a response and overcome all the problems that inevitably arise when the clutch unit technology is not adequate to the other engine components. A traditional clutch, having to transmit more than double the power to the gears, while simultaneously rotating much faster, can lead to bell failures under the effect of
centrifugal force, slipping and deformations that translate into annoying and unsettling metallic noises, up to the classic clutch slipping caused by

5 discs
basket
thickness 1.95mm
8 spring(s)
4 washers
thickness 1.60mm
with pressure plate on ball bearings

The HTQ Malossi gears for Vespa PX inherit the legacy of the first gear project produced by Malossi between the late 80s and early 90s.
Completely redesigned, this pair of primary gears uses a straight-tooth configuration instead of the standard helical ones.
Malossi has worked hard to ensure the exceptional quietness of the gears, achieved with special machining of the teeth and their contact surfaces, meticulously finished and verified with an involute tester.
The HTQ Malossi gears are made using only materials that exceed the strict standards imposed by our technicians through rigorous tests and trials.
The final machining uses CNC machines,
after which the HTQ Malossi gears undergo a complete thermochemical carburizing treatment at 900°C, giving them the required hardness and strength.
The size and quality of the finished gears are finally verified on Zeiss three-dimensional control machines.

The HTQ Malossi gears for Vespa PX inherit the legacy of the first gear project produced by Malossi between the late 80s and early 90s.
Completely redesigned, this pair of primary gears uses a straight-tooth configuration instead of the standard helical ones.
Malossi has worked hard to ensure the exceptional quietness of the gears, achieved through special machining of the teeth and their contact surfaces, meticulously finished and verified with an involute tester.
The HTQ Malossi gears are made using exclusively materials
that exceed the very strict standards imposed by our technicians with rigorous tests and trials.
The final machining uses CNC machines,
after which the HTQ Malossi gears undergo a complete
thermochemical carburizing treatment at 900°C, giving them the
hardness and
resistance required.
The size and quality of the finished gears are finally verified on
Zeiss three-dimensional control machines.

The HTQ Malossi gears for Vespa PX inherit the legacy of the first gear project produced by Malossi between the late 80s and early 90s.
Completely redesigned, this pair of primary gears uses a straight tooth configuration instead of the standard helical ones.
Malossi has worked hard to ensure the exceptional quietness of the gears, achieved with special machining of the teeth and their contact surfaces, meticulously finished and verified with an involute meter.
The HTQ Malossi gears are made using exclusively materials that exceed the very strict standards imposed by our technicians with rigorous tests and trials.
The final machining uses numerically controlled machines, after which the HTQ Malossi gears undergo a complete thermochemical carburizing treatment at 900°C, giving them the required hardness and resistance.
The size and quality of the finished gears are finally verified on Zeiss three-dimensional control machines.
Paired two by two to ensure the correct operating clearance, the HTQ Malossi gears are the most precious gift a true romantic enthusiast can give to their Vespa.

The HTQ Malossi gears for Vespa PX carry the legacy of the first gear project produced by Malossi between the late 80s and early 90s.
Completely redesigned, this pair of primary gears uses a straight-toothed configuration instead of the standard helical ones.
Malossi has worked hard to ensure the exceptional quietness of the gears, achieved through special machining of the teeth and their contact surfaces, meticulously finished and verified with an involute tester.
The HTQ Malossi gears are made using only materials that exceed the very strict standards imposed by our technicians with rigorous tests and trials.
The final machining uses numerically controlled machines, after which the HTQ Malossi gears undergo a complete thermochemical carburizing treatment at 900°C that gives them the required hardness and resistance.
The size and quality of the finished gears are finally verified on Zeiss three-dimensional control machines.
Paired two by two to ensure the correct operating clearance, the HTQ Malossi gears are the most precious gift a true romantic enthusiast can give to their Vespa.

The HTQ Malossi gears for Vespa PX inherit the legacy of the first gear project produced by Malossi between the late 80s and early 90s.

The power developed by an engine, whether standard or modified, will be pointless if it is not transmitted to the wheels in the most efficient and effective way, without unnecessary friction and waste of mechanical energy.

Malossi, a leader in the production of high-performance components for the scooter world, has focused all its know-how by completely redesigning the primary transmission for the classic Vespa "small frame" to ensure that the maximum power is transformed into road performance.

The new Malossi primary transmission for the Vespa is a true concentration of engineering. From the highest quality materials to the attention to detail and the quality of mechanical processes, everything is brought to a very high level. From the bronze bushing to the clutch basket and gears, everything is worked separately to ensure that each individual component is produced according to the highest quality standard.

The core of the innovations introduced in this transmission is the new clutch bell, made from special solid steel and characterized by six slots for the clutch discs, all six "active" and designed to lock the discs. In this way, all mechanical play is minimized, as are vibrations and the consequent wear of the basket itself and the guide teeth of the discs.

The new primary transmission is also

The power developed by an engine, whether standard or modified, will be pointless if it is not transmitted to the wheels in the most efficient and effective way, without unnecessary friction and waste of mechanical energy.

Malossi, a leader in the production of high-performance components for the scooter world, has concentrated all its know-how by completely redesigning the primary transmission for the classic Vespa "small frame" to ensure that the maximum power is transformed into road performance.

The new Malossi primary transmission for the Vespa is a true concentration of engineering. From the highest quality materials to the attention to detail and the quality of the mechanical processes, everything is brought to a very high level. From the bronze bushing, to the clutch basket and the gears, everything is processed separately to ensure that each single component is produced according to the highest quality standard.

The heart of the innovations introduced in this transmission is the new clutch bell, made from special solid steel, characterized by six slots for the clutch discs, all six "active" and aimed at locking the discs. In this way, all mechanical play is reduced to a minimum, as well as vibrations and the consequent wear of the basket itself and the guide teeth of the discs.
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Transfers: 3

Diameter: 52.5 mm

Stroke: 57 mm

Diameter: 66.5 mm

Stroke: 57 mm
Notes: Without head

Including prisoners and brass trim

Included: cylinder fitting with gasket

Finish: Painted

Load index: 51J

Tube type

Inner bearing seat 42 mm
Number of teeth: 12-13-17-21
Primary pinion with 65 helical teeth

KIT COMPOSED OF:
N.1 ROLF OIL SEAL 20x62x6.5 CLUTCH SIDE 
N.1 ROLF OIL SEAL 20x40x6 FLYWHEEL SIDE 
N.1 CORTECO OIL SEAL (27X37X7) REAR WHEEL
+ O-RINGS

Z 29x68 with straight teeth
With shock absorber

Roller cage included
Stroke 43
Small cone

flywheel: 1660g (CNC aluminum)
9 coils, 12 magnets, 12V, DC, 110 watts, variable ignition point.