Eliminate the frustrating off-the-line lag and uneven mid-range shifting native to factory setups with the race-bred Malossi Multivar Performance Variator. Engineered, surface-calculated, and manufactured in Italy by the world's leader in scooter performance tuning, this complete CVT upgrade alters your transmission's shifting geometry. By reshaping the internal roller ramp guide angles, it forces your drive belt to travel further and smoother�maximizing acceleration and unlocking extra top-end speed.
Premium Italian Engineering Features
- Optimized Shift Curve: Recalculated ramp paths maintain a linear belt transit, keeping your 50cc motor pinned directly inside its optimal powerband.
- Self-Lubricating Plain Bush: Features a ground, case-hardened steel drive boss bushing to ensure smooth, friction-free sliding and exceptional long-term durability under high thermal strain.
- High-Tension White Counterpressure Spring: Includes an upgraded racing torque spring (+30% stiffness) to prevent belt slippage and optimize rear pulley back-shifting during corner exits.
- Precision HTRoll Weights: Ships with a matched set of 6 high-density, wear-resistant 9.0-gram rollers (16x13mm) balanced for robust daily performance.
- Made in Italy: Authentic Malossi engineering, proven on the racetrack since 1930.
Comprehensive Vehicle Fitment Index
This performance variator kit (Malossi Part # 519988) is custom-tailored for Kymco 50cc 2-stroke horizontal engines, supporting both air-cooled (AC) and liquid-cooled (LC) variants:
| Make / Brand | Model Family Compatibility | Engine Setup & Fitment Parameters |
|---|
| Kymco | Super 9 50 / Super 9 LC | All 2-Stroke Production Years (Air and Liquid Cooled) |
| Kymco | People 50 | All 2-Stroke Model Years (Classic Big-Wheel Commuter) |
| Kymco | Cobra 50 / Cross / Racer | All 2-Stroke Model Years |
| Kymco | Vitality 50 2T / Dink 50 2T | Fits horizontal 2-stroke layouts (Does NOT fit 4-stroke versions) |
| Kymco | Top Boy 50 / YUP 50 | All 2-Stroke Horizontal Variations |
CRITICAL MODEL EXCLUSION: This kit is engineered exclusively for Kymco 2-Stroke engine configurations. It WILL NOT fit Kymco 4-stroke models (such as the Agility 50, Like 50 4T, or People 50 4T) due to completely different crankshaft splines and variator face angles.
Kit Contents
- Malossi Multi-Var variator assembly (part of kit #519988)
- Counterpressure spring � white reinforced, d=4.0mm, Piaggio 50 (+30%): #298360W0
- Plastic slide set, 3 pieces: #378175
- Roller weights � 16x13mm, 9.0g, set of 6: #669823O0
Technical Specifications
- Roller Weight: 9.0g
- Roller Dimensions: 16x13mm
- Part Number: M 519988
- Country of Origin: Italy (IT)
Tuning Note: The included 9.0g roller weights are calibrated as an excellent baseline for stock or lightly modified sport exhausts. If you have installed a high-RPM racing expansion chamber pipe, you may need to mix in lighter roller weights to align the CVT with your new, higher peak powerband.
Installation Tip: Never reuse a worn or cracked drive belt when installing a performance variator. Clean the crankshaft splines completely free of old belt dust before assembly, and never use an impact wrench to torque the variator face nut without a dedicated holding tool.
About Malossi
Malossi has been synonymous with Italian performance engineering since 1930. Every product begins in R&D, undergoing rigorous testing in real racing conditions before being approved for street use. Components are manufactured robotically under the direct supervision of Malossi family artisans � a tradition of precision passed down through generations.
California Prop 65 Warning: www.p65warnings.ca.gov
Notice: This product is intended for off-road and racing use only. Not legal for use on pollution-controlled vehicles in California or on public roads. Check local laws before installing. Performance upgrades are not covered under warranty.
