KOSO Clutch Rollers 18x14 for 150cc, GY6 - FJ404130, FJ404125, FJ404140

These high-performance, Taiwanese rollers were purposely engineered for racing.  Each individual roller comes with a patented self-lubricated material for smooth shifting at all times. A special formula PA-66 material resists heat for less wear and tear. 

Different roller weights can be applied to modify performance for variables such as rider weight, riding style and/or terrain. It is commonly recommend that high-rev engines use lighter roller weights while high-torque engines use heavier roller weights. 

• High-performance rollers designed for racing 
• Resists heat and tear 
• Smoother shifting 

Lighter roller weights = faster take-off acceleration, lower top speed. 
Heavier roller weights = slower take-off acceleration, higher top speed.

KOSO Part # FJ404125 12.5g 18mmx14mm
KOSO Part # FJ404130 13g 18mmx14mm
KOSO Part # FJ404140 14g 18mmx1mm