Clutch FABBRI RACING FB24 EVO Racing for Vespa Smallframe and Ape 50
High-quality racing clutch with 15-spring system for powerful smallframe engines up to approx. 30 hp.
The FABBRI RACING FB24 EVO is a clearly sporty smallframe clutch for engines where a near-series solution has long since reached its limits. The concept is designed for high load capacity, clean power transmission and lasting stability. With its 15-spring package, the steel basket manufactured from solid material and the very elaborately constructed pressure plate area, it is a clutch for serious road and racing engines - not for show, but for reliable function under load.
FABBRI RACING
FB24 EVO
up to 30 hp
15 springs
Smallframe
Ape 50
What makes the FB24 EVO stand out
for powerful engines: designed for smallframe setups up to approx. 30 hp
15-spring system: 5 large and 10 smaller springs for high holding force with a clean setup
Solid clutch basket: made from solid steel for high stability
Elaborately detached pressure plate area: with axial thrust bearing and centering stainless steel cap
15 springs for high holding force
The heart of the FB24 EVO is its 15-spring package. FABBRI combines 5 springs with a diameter of 14 mm and 10 springs with a diameter of 10 mm. This combination is designed for high load capacity and ensures that the clutch closes cleanly and transmits power reliably, even with powerful smallframe engines.
Spring concept and friction pack
5 main springs: Ø 14 mm, made of spring steel
10 additional springs: Ø 10 mm, made of spring steel
4 friction discs: with organic lining material
3 intermediate disks: Aluminum, 1.5 mm thick
High-quality materials at the crucial points
For the FB24 EVO, FABBRI relies on a steel basket made from solid material and a spring plate or end section made from a special alloy, which FABBRI also uses for its other racing clutches. The aim is to achieve high dimensional stability and durability, especially on the components that are subjected to high loads in powerful engines.
Pressure plate and release system
The pressure plate bearing area is a particularly complex solution. The bearing carrier is made from solid Anticorodal and works with an axial thrust bearing. There is also a stainless steel cap with a centering hole, which, according to FABBRI, contributes to better alignment of the clutch cover.
Made from the solid: Bearing carrier in Anticorodal
Axial thrust bearing: for clean power transmission during disconnection
centering stainless steel cap: patented FABBRI solution
Can be distanced: distance to the thrust pad can be adjusted using shims
Note on actuation
For better and more comfortable clutch operation, FABBRI recommends the use of a clutch cover with rack and pinion mechanism. This is a very useful addition, especially for racing clutches with strong springs.
Field of application
The FB24 EVO is clearly intended for powerful smallframe engines. It fits very well with sporty street engines, powerful touring setups and engines that regularly see high loads. At the same time, it remains a mechanically clean solution for riders who do not want to work with exotic special parts, but are looking for a high-quality multi-disc clutch with a coherent design.
| Vespa Smallframe | V50, V90, SS50, SS90, PV125, ET3, PK50, PK80, PK125 S, PK XL, ETS, HP, Rush, N, SS |
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| Ape | Ape 50, Ape FL2 50 |
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| Power range | up to approx. 30 hp |
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Brief technical overview
| Manufacturer: FABBRI | FABBRI RACING |
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| Type | FB24 EVO Racing |
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| Item number | 5579-24EVO |
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| Design for | for engines up to 30 hp |
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| Clutch basket | Steel, machined from solid |
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| Springs | 15 pieces (5 x Ø14 mm + 10 x Ø10 mm) |
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| Friction disks | 4 pieces, organic lining |
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| Spacers | 3 pieces, aluminum, 1.5 mm |
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| circlip | High-strength circlip |
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| Thrust bearing carrier | Anticorodal, made from solid material |
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Conclusion
The FABBRI RACING FB24 EVO is a very high-quality smallframe racing clutch for engines where a normal tuning clutch is no longer sufficient. Steel basket made from solid material, 15-spring system, 4-disc package and a very elaborately constructed pressure plate area together result in a clutch that is designed for durability, holding power and clean operation up to around 30 hp.
FAQ about the FABBRI FB24 EVO
According to FABBRI, the FB24 EVO is designed for smallframe engines up to around 30 hp.
The clutch works with 15 springs, divided into 5 springs with a diameter of 14 mm and 10 springs with a diameter of 10 mm.
There are 4 friction discs with an organic lining and 3 aluminum intermediate discs with a thickness of 1.5 mm.
FABBRI recommends a clutch cover with rack and pinion mechanism for more comfortable operation.
The FB24 EVO is designed for many Vespa Smallframe models and Ape 50 applications.
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