Spring shock DNM 1200lbs

For shock DNM 270 to 290mm on center
Height 140m
Diameter 68m
Within 45m diameter
The spring should be adjusted to the weight of the driver but also the mounting position of the shock
We must measure the distance between the axis of the swingarm and the axle mounting lower shock
Distance = 100mm> 1000lbs spring up 70kg for driver and 1200lb beyond
Distance = 130mm> 800lb spring for up to 70kg driver 1000lbs and beyond