Malossi
Malossi Multivar Performance Variator - Honda Ruckus
Description
Eliminate the frustrating off-the-line bogging and sluggish mid-range response native to factory 50cc setups with the race-bred Malossi Multivar Performance Variator. Engineered, surface-calculated, and robotically manufactured in Italy, 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 out-of-the-hole acceleration and unlocking extra top-end speed without compromising engine reliability.
Premium Italian Engineering Features
- Optimized Shifting Geometry: Recalculated ramp paths maintain linear belt transit, keeping your 50cc motor pinned directly inside its optimal powerband.
- High-Tensile Silicon-Steel Hub: Features a ground, case-hardened steel drive boss bushing to ensure smooth, friction-free sliding under high thermal strain.
- Self-Lubricating Sliders: Includes a matched set of 3 low-friction resin gliders designed to stop mechanical binding and prolong the life of the pressure plate.
- Precision HTRoll Calibration: Ships with a matched set of 6 high-density, wear-resistant 7-gram rollers (16x13mm) balanced for stock or lightly modified configurations.
Comprehensive Fitment & Model Guide
This performance variator utilizes a specific spline profile tailored for liquid-cooled 4-stroke Honda 50cc platforms and select 2-stroke clones:
| Make / Manufacturer | Model Platform Fitment | Engine Architecture & Notes |
|---|---|---|
| Honda | Ruckus 50 / Zoomer 50 (NPS50) | All Model Years (50cc Liquid-Cooled 4-Stroke) |
| Honda | Metropolitan 50 (CHF50 / Jazz / Scoopy) | 2002–2009 Models Only (Generation I & II 4-Stroke) |
| Honda | Dio Clean 4 You 50 | 50cc 4-Stroke Liquid-Cooled Variants |
| SYM / Kymco | DD50 / Mio 50 / Fiddle / ZX Cobra | Select Honda-based engine architectures |
CRITICAL MODEL EXCLUSION: This kit WILL NOT fit newer fuel-injected Honda Metropolitan NCH50 models (2013–present) due to changes in crankshaft dimensions. It also will not fit small-spline AF18 or AF05E vintage 2-stroke engines.
Technical Specifications
- Roller Weight Dimensions: 16mm x 13mm
- Included Roller Mass: 7.0 Grams (Set of 6)
- Drive Boss Bushing Outer Diameter: 20mm
- Drive Boss Bushing Inner Diameter: 14mm
- Drive Boss Bushing Total Length: 34.6mm
- Manufacturer Part Number: 5111852 (51 11852)
- Country of Origin: Italy (IT)
Tuning Note: The included 7g roller weights are carefully selected as a benchmark starting point. If your Ruckus has a modified CDI, intake, or an aftermarket exhaust system, you can mix and match different roller masses to dial in your personal torque curve.
Installation Tip: Never use a high-torque impact wrench to tighten the variator nut without a dedicated holding tool, as over-tightening can easily strip or snap your crank threads.
SKU: M5111852
Vendor: Malossi
Category: Engine & Transmission / Variators
Product Diagrams
Specifications
Outer Diameter: 97 mm
Inner Diameter: 14 mm
Model Fitments
- Honda Ruckus
- Honda Metropolitan from 2002-2009 (CHF50)
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
