Dr. Pulley Round Roller Weights are engineered for riders who demand more than what standard OEM parts can offer. Known for their exceptional durability and low-friction properties, these weights are the industry standard for CVT tuning.

Unlike generic rollers, Dr. Pulley uses a proprietary self-lubricating polymer that significantly reduces the risk of "flat-spotting," ensuring your transmission shifts smoothly and maintains its performance over thousands of miles. Whether you are looking for better hill-climbing torque or a higher top speed, these weights provide the precision needed to dial in your scooter's powerband.

Key Performance Benefits

• Superior Heat Resistance: Designed to withstand the high temperatures found in performance CVT systems without degrading.
• Extended Service Life: Lasts significantly longer than standard nylon rollers, reducing maintenance frequency.
• Optimized Power Delivery: Precision-weighted to help you fine-tune acceleration and top-end speed.
• Low Friction Material: Provides a quicker, more responsive shift compared to stock weights.

Technical Specifications

• Dimensions: 18mm (Diameter) x 14mm (Width)
• Quantity: Set of 6 Rollers
• Material: Specialized low-friction, high-heat resistant polymer
• Weight Range: 7.5g to 17.0g (Select size from menu)
• Special Edition: 14g weights available in "Black Pearl" material for maximum longevity
• SKU: 169-238
• Manufacturer: Dr. Pulley

Model Fitment

These 18x14mm rollers are the standard size for most 125cc to 170cc 4-stroke scooters using the GY6 engine platform (Engine codes 152QMI and 157QMJ).