Chain & Sprocket Kits. PN# IMK-HUS-NON

Kit Includes: Ironman counter-shaft and rear sprocket & 120 link Regina  RX  Non Sealed Chain.
This gold O-ring chain holds up extremely well to the rigors of off-road riding and racing.
Designed to ensure high resistance to elongation and to the severe impulse stresses caused by off-road riding. 
The o-rings feature a better performing round section which characterizes the latest generation of O-rings. 
These modern rings extend lubrication interval while reducing friction. 
When looking for longevity from your drive components, look no further.
Sprocket Features: High quality heat-treated chrome-moly steel which is 2.5 times stronger than steel and 3 times stronger than 7075 alloy.250,000 psi material in a protective nickel finish.
 "Closed Truss" design  evenly distributes stresses allowing for an overall decrease in weight.
Counter-shaft (front) sprockets are made of shock-resistant die steel, much stronger than "case hardened" steel.
 Made in the U.S. 

Fitment From Parts Finder:
HUSQVARNA  (14-21) 125-501  All 2 & 4 Stroke  Models.