FRT EVO3 Reinforced Clutch Cover – with 3-way adjustable clutch arm
The FRT EVO3 clutch cover is a thoroughly reinforced solution for high-performance Vespa small-frame clutches. The housing is made of heat-treated G-AlSi7 aluminum, features a precision rack-and-pinion mechanism, and, with a clutch chamber diameter of 118 mm, offers plenty of space for modern aftermarket clutches.
The case-hardened and ground release shaft (Ø10 mm) is mounted on dual bearings. In addition, the clutch arm features three attachment points for the clutch cable. This allows the ratio between the required hand force and the available actuation travel to be individually adjusted to suit the clutch and the rider.
FRT EVO3
Ø118 mm clutch chamber
Rack-and-pinion mechanism
Ø10 mm release shaft
double-bearing
3 pull points
pre-assembled
Key advantages
Reinforced aluminum housing: G-AlSi7, heat-treated and glass bead blasted
Rack-and-pinion mechanism: precise and smooth clutch actuation
118 mm diameter interior: designed for virtually all common small-frame aftermarket clutches
Ø10-mm release shaft: case-hardened and ground
Dual-bearing design: stable guidance even under high spring forces
3-way adjustable clutch arm: choice between lower hand force and shorter actuation travel
Pre-assembled: delivered fully assembled
Three cable attachment points – individually adjust the lever ratio
The clutch arm on this EVO3 model features three different attachment points for the clutch cable. This allows the mechanical ratio of the clutch actuation to be adjusted to the clutch being used and the desired lever feel.
Hand force or travel distance – freely selectable
Outer mounting point: longer effective lever arm, resulting in lower required hand force—but more cable travel is needed
Middle mounting point: a balanced compromise between hand force and cable travel
Inner mounting point: shorter cable travel required—but this increases the required hand force
This adjustment option is particularly practical for high-performance clutches with high spring force: The operation can be made more comfortable or more direct without having to change the entire release mechanism.
Rack-and-pinion mechanism instead of simple lever operation
The EVO3 design utilizes a rack-and-pinion mechanism. This ensures that the movement of the clutch arm is precisely transmitted to the release system.
Especially for clutches with high spring force, guidance that is as play-free and precise as possible is crucial. The rack-and-pinion mechanism reduces unnecessary tilting movements and ensures direct, reproducible operation.
Ø118 mm clutch housing – for modern tuning clutches
The interior space for the clutch basket measures Ø118 mm. According to FRT, this makes the cover compatible with standard small-frame clutches on the market, specifically including models from Fabbri, Falc, EGIG, VMC, and Crimaz.
The area for the primary sprocket has a diameter of 26 mm.
Ample installation space for high-performance clutches
Clutch mounting: Ø118 mm
Sprocket mounting: Ø26 mm
Compatibility: Fabbri, Falc, EGIG, VMC, Crimaz, and other standard market clutches according to FRT
Ø10 mm release shaft—hardened, ground, and double-bearing
The release shaft has a diameter of 10 mm and a usable length of 107 mm. It is case-hardened and then ground.
This results in wear-resistant and precise bearing surfaces. The double-bearing configuration further stabilizes the shaft and reduces the tendency to tilt under high loads.
Shaft diameter Ø10 mm
Effective length 107 mm
Case-hardened and ground
double-bearing design
O-ring seal
Self-lubricating bushing
Thrust piece / Rallino in the release mechanism
Compatible with the PK XL2 and many classic small-frame models
The FRT EVO3 is primarily designed for the Vespa PK XL2, but can also be used on other small-frame models:
Vespa V50
Vespa PV / Primavera
Vespa ET3
Vespa PK XL
Vespa ETS
Note for V50 / Special / ET3
According to FRT, when used with the brake anchor plate or brake base plate from the Vespa Special or ET3, the clutch cover must be machined. The relevant area must be ground down to ensure sufficient clearance.
G-AlSi7 aluminum – heat-treated and glass bead blasted
The housing is made of G-AlSi7 aluminum and heat-treated. The surface is then blasted with glass microbeads, resulting in a technically clean and uniform surface.
The version offered here is black.
Fully pre-assembled
Delivered ready for installation
According to the manufacturer, the FRT EVO3 clutch cover is delivered fully assembled. The release shaft, bearings, bushing, seals, and pressure plate are thus already assembled as a coordinated system.
Technical Specifications
| Manufacturer | FRT |
|---|
| Series | EVO3 |
|---|
| Component | Reinforced clutch cover |
|---|
| Material | G-AlSi7 aluminum, heat-treated |
|---|
| Surface | blasted with glass microbeads |
|---|
| Color | Black |
|---|
| Operation | Rack-and-pinion mechanism |
|---|
| Clutch chamber | Ø118 mm |
|---|
| Pinion chamber | Ø26 mm |
|---|
| Release shaft | Ø10 mm |
|---|
| Effective length of release shaft | 107 mm |
|---|
| Shaft surface | Case-hardened and ground |
|---|
| Bearing arrangement | Double bearings |
|---|
| Sealing | O-ring |
|---|
| Guidance | Self-lubricating bushing |
|---|
| Thrust piece | Rallino / Pressure Piece |
|---|
| Clutch arm | 3 load-bearing points for adjusting manual force and actuation travel |
|---|
| Delivery condition | Fully pre-assembled |
|---|
Installation Instructions
Check the clutch and clutch cover for full freedom of movement before final installation
For V50/Special/ET3 models with the corresponding brake anchor plate, grind the cover to the appropriate clearance according to the FRT
Select the desired cable attachment point based on manual force and required actuation travel
Route the clutch cable neatly and without tension
Adjust the clutch play correctly after installation
Check the operation and cable play after the first few rides
Conclusion
The FRT EVO3 with a 3-way adjustable clutch arm is a high-quality and durable clutch cover designed for high-performance Vespa small-frame engines. Its rack-and-pinion mechanism, 10-mm-diameter release shaft, dual bearings, large 118-mm-diameter clutch chamber, and three cable attachment points make it a highly versatile foundation for modern tuning clutches.
Its broad clutch compatibility is particularly noteworthy. According to FRT, virtually all common systems are compatible, including Fabbri, Falc, EGIG, VMC, and Crimaz.
FAQ on the FRT EVO3 Clutch Cover
The clutch housing measures Ø118 mm. According to FRT, the cover is compatible with all common clutches, specifically including Fabbri, Falc, EGIG, VMC, and Crimaz.
Yes. However, according to FRT, when used with the brake anchor plate from Special or ET3, local machining of the clutch cover is required.
The clutch housing has a diameter of 118 mm. The area for the primary pinion is specified as Ø26 mm.
The shaft has a diameter of 10 mm, a usable length of 107 mm, and is case-hardened and ground. It is mounted on two bearings and additionally guided by an O-ring and a self-lubricating bushing.
Yes. FRT ships the EVO3 fully assembled.
The three attachment points allow you to adjust the lever ratio. The outer point reduces the required hand force but requires a longer cable travel. The inner point shortens the required cable travel but increases the required hand force. The middle position is a compromise between the two.
DE | €
