This is the TFC Performance Variator Front Pulley Set, GY6 for 125/150cc GY6 engines. 

Original Parts For Scooters SKU 179-8

Lighter weight increases acceleration throughout the rev range due to lower rotational mass.  Teflon coating reduces roller wear increasing durability while the grooved sidewalls result in lighter rotational mass and increased airflow reducing heat for longer life and improved engine performance.

User-selectable rollers allow you to tune your scooter to specifically attain a higher top speed or faster launch by maintaining the ideal rpm at peak torque or peak horsepower depending on your personal preference.

Compatibility:

• Genuine Buddy 125    
• Genuine Hooligan 170i
  
• Genuine Buddy 150    
• Genuine Blur 150
  
• Genuine Buddy 170i    
• Polaris RZR 170
  
• ZNEN 150cc Scooters    
• Icebear 150cc Scooters
  
• X-Pro 150cc Scooters    
• HHH 150cc Scooters
  
• Amigo 150cc scooters    
• Tao Motors 150cc scooters
  
• Trail Master 150cc Scooters    
• RPS 150cc scooters
  
• Vitacci 150cc Scooters    
• GY6 150 based scooters, ATVs, Side By Sides, and Go Carts

This part is also compatible with 157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:

• 157QMJ    
• 161QMK    
• 152QMI    
• 1P61QMK
  
• YN1P57QMJ    
• 1P52FMI    
• 154FMI    
• JJ157QMJ
  
• 1P57QMJ    
• BN157QMJ    
• BN161QMK-A    
• Other QMJ, QMK, and QMI models
  

Product Specifications:

About TFC:

Since 2007 TFC has been producing quality aftermarket performance parts for many popular scooter brands.  You can Trust TFC parts to perform significantly better than stock with an appearance that is unrivaled.  Made in Taiwan.