The Polini Maxi Hi-Speed variator kit part number 241.743 has been specifically developed to improve the performance of the CVT transmission fitted to modern SYM 125 scooters.
Designed using Polini's extensive experience in automatic scooter transmissions, this kit delivers quicker acceleration, smoother power delivery and improved transmission efficiency while maintaining OEM-level reliability.
The kit is supplied ready for installation and includes a complete set of 19x17 mm, 7 g rollers, manufactured from a special nylon and aramid fiber compound for reduced wear and long-lasting smooth operation.
The roller tracks feature a special polished finish that minimizes friction and improves transmission progression.
A precision ground hard-chromed steel variator pin ensures durability and accurate operation, while the specially designed movable pulley increases belt travel, maximizing CVT efficiency.
The kit also includes the Polini EVO anti-torsion Slider, designed to optimize the operation of the original contra spring for smoother and more consistent transmission performance.
Compatibility:
- SYM ADX 125 Euro 5 / Euro 5+ (2023→)
- SYM Cruisym 125i Euro 4 (2018→)
- SYM MMBCU 125 Euro 5+ (XS1P53MI)
Package contents:
- Polini Maxi Hi-Speed variator
- 19x17 mm - 7 g rollers
- EVO anti-torsion Slider
- Installation components
Technical specifications:
- Polini part number: 241.743
- Roller size: 19x17 mm
- Roller weight: 7 g
- Hard-chromed precision variator pin
- High-travel movable pulley
- EVO anti-torsion Slider included
- Genuine Polini product
- Made in Italy
Main features:
- Faster acceleration
- Improved throttle response
- Smoother CVT operation
- Reduced friction
- Increased transmission efficiency
- Excellent durability
- Easy installation
- Genuine Polini quality
