Proform - BB1902
Calibration Spring - Medium - 50 - 450lbs - Steel - Natural - Each
Range 50 - 450 lbs.
When accuracy is the difference between winning and losing, there's one test spring to trust when setting up your vehicle...the RIMAC calibrated test spring. Approximate documented range is from 50 to 450 lbs. Data sheet included. Super accurate and individually tested on an Instron SF1240 testing machine.
