Product Description:
Take your Yamaha Aerox 155 to the next level with the UMA Racing CVT Clutch Pulley Roller V3 20×12 9g. This precision-engineered roller is designed to enhance the performance of your scooter’s CVT transmission by improving acceleration, power delivery, and overall smoothness. Crafted with high-performance materials, it offers better durability and responsiveness, especially for performance-tuned rides.
With its 9g optimized weight, it balances low-end torque with high-speed stability, delivering both quicker shifts and smoother power engagement.
Key Specifications:
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Brand: UMA Racing
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Model: V3 20 x 12 – 9g
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Size: 20mm (Diameter) x 12mm (Width)
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Weight: 9 grams per roller
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Fitment: Yamaha Aerox 155
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Material: High-durability wear-resistant composite
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Type: CVT Roller for clutch pulley system
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Version: V3 – Reduced friction and enhanced glide
Key Features:
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Optimized Weight (9g): Balanced for both fast acceleration & high-speed cruising
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Precision Fit (20x12mm): Direct replacement for OEM rollers
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Smoother Shifting: Reduces CVT vibration and delivers refined powerband transitions
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Enhanced Durability: Withstands heat, friction, and aggressive riding conditions
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Improved Throttle Response: Transfers engine power more effectively to the wheel
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Performance Tuning Friendly: Great for riders upgrading their variator/clutch setups













