Heavy-duty CNC clutch for Lambretta models with an integrated shock absorber. Developed by CASA PERFORMANCE for SIP SCOOTERSHOP and designed for high-performance engines.
The SIP Master combines features of the CASA PERFORMANCE Power Master and Smooth Master. The goal was to create a compact Clutch with high power transmission, an integrated shock absorber, and compatibility with the original chain cover.
- CNC-machined components
- Integrated shock absorber
- Six friction plates and twelve Springs
- Suitable for original LI/SX and DL/GP Clutch Covers
Combination of the Power Master and Smooth Master
The SIP Master is technically based on the Power Master but requires one fewer lining. This allows it to fit under the original chain cover.
Compared to the Smooth Master, it has twelve springs instead of ten, eight shock absorbers instead of four, and differently shaped clutch tabs. It thus combines the compact design of the Smooth Master with the structural reserves of the Power Master.
Six plates in CNC-machined cages
The Base Plate and outer Clutch Basket are CNC-machined. The Cover Plate, Gear Cog, and inner Basket are made of CNC-machined aluminum.
Six Clutch Friction Plates work in conjunction with five steel discs and twelve Springs. The mounted Pressure Plate is included in two versions, suitable for DL/GP and LI/SX Clutch Covers. A Holding Tool for installation is also included.
Weighing approximately 1,700 g, the Clutch is lighter than the original Clutch assembly.
Integrated Shock Absorber
Shock absorption is based on the CASA PERFORMANCE Power Master principle. Eight rubber elements between the Clutch Basket and the Clutch Gear Cog dampen load peaks during power transmission.
This reduces sudden loads in the drivetrain, particularly with high-performance engines.
Aluminum Gear Cog
The Clutch Gear Cog is made of Ergal aluminum. This reduces rotating mass.
Since the force is distributed across a larger number of teeth and the Gear Cog is decoupled from the Clutch Basket via the shock absorber, the design is also suitable for high engine power outputs.
Two spring sets
The package includes two different spring sets. The springs marked in green are slightly softer and sufficient for many setups.
Under higher loads, both spring types can be combined, or only the stiffer, unmarked springs can be used. The appropriate setup depends, among other factors, on engine power, vehicle weight, and gear ratio.
Technical Details
- 6 Clutch Friction Plates
- 5 separator plates
- 12 springs
- 8 shock absorbers
- Bearing-mounted Pressure Plate
- Pressure plates for LI/SX and DL/GP included
- 2 spring sets included
- Holding Tool included
- CNC-machined components
- Clutch Gear Cog made of Ergal aluminum
- Weight: approx. 1,700 g
- Available with 46, 47, or 48 teeth
Conclusion: Compact, high-performance clutch for Lambretta engines with an original Clutch Cover, integrated shock absorber, and extensive tuning options.
These products fit perfectly – SIP TIPS:
