DR. PULLEY 16x13 (7.5 GRAMS) ROUND ROLLER WEIGHTS 

FOR 50cc - 100cc 4-STROKE QMB139 ENGINES 

 GEAR RATIO IS CHANGED BY THE UP-AND-DOWN 

ROLLING MOVEMENT OF THE ROLLER WEIGHTS 

IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) 

 NOW THE INNOVATIVE DR. PULLEY ROUND ROLLER WEIGHTS ROLL

 UP AND DOWN THE RAMP TO CHANGE THE GEAR RATIO. 

THIS UNIQUE ROLLING MOVEMENT PROVIDES EXCLUSIVE 

ADVANTAGES TO INCREASE CVT PERFORMANCE. 

WITH DR. PULLEY, NO ABNORMAL WEAR WILL OCCUR 

EVEN WHEN RUNNING IN HIGH GEAR.

 WE RECOMMEND STARTING PERFORMANCE UPGRADES BY 

CHANGING THE VARIATOR ROLLER WEIGHTS FIRST.

 HEAVIER ROLLER WEIGHTS= A SLOWER TAKE OFF SPEED WITH LESS

 ACCELERATION AND A HIGHER TOP SPEED. 

LIGHTER ROLLER WEIGHTS = A FASTER TAKE OFF SPEED WITH 

MORE ACCELERATION AND LOWER TOP SPEED

 SIZE: 16 X 13
SET OF 6
LASTS LONGER THAN STANDARD ROLLER WEIGHTS
EXCELLENT HEAT RESISTANCE
LOW FRICTION / LOW WEAR

 FITS MOST MODELS OF 

TAOTAO, ICE BEAR, WOLF, JONWAY, JMSTAR, 

ROKETA, SUNL, TANK, PEACE, COUGAR, GATOR

AND MANY OTHERS