It's adjustable spring preload. The shock body looks very trick.
10 1/2" (270mm) ADJUSTABLE REAR SHOCK
Item #: SK270-SR
Condition: Brand New
Measures 10 1/2" (270MM) eye to eye.
Fits the most MODIFIED frame Swingarm XR/CRF50 & XR/CRF 70 pit bike
90 110 125 140 150 and their copies please check our measurement.
It WILL NOT fit the stock swingarm & frame unless you MODIFY
your Frame. This shock is designed for the Single Sided BBR Super Pro
type Swingarms as I listed in seperate auction with the modified frame.
