Polini Hi-Speed Evolution Variator (Minarelli Horizontal)

High-performance CVT variator designed for Minarelli horizontal engines, such as those found in Yamaha Aerox and similar 2-stroke scooters. The Hi-Speed Evolution represents an advanced upgrade over standard variators, improving acceleration, shifting behavior, and overall top speed.

Engineered with optimized pulley angles and high-quality materials, this variator reduces friction, enhances durability, and delivers smoother power transmission.

Key benefits :

• Improved acceleration and throttle response
• Optimized shifting characteristics
• Increased top speed potential
• Reduced wear thanks to polished surfaces and improved lubrication
• Suitable for sport to high-end racing setups

Contents :

• Variator with ramp plate and pulley
• Roller weights : 2 sets of 6 rollers (19×15.5 mm) / 3.2 g and 3.8 g
• Reinforced torque spring (Evo Slider +8%)
• Spring seat (Evo Slider)

Recommendations :

• Works with standard-length drive belts
• Best performance when paired with a reinforced belt
• Compatible with original torque drive