Proform - BB1903
Calibration Spring - Light - 10 - 190lbs - Steel - Natural - Each
RIMAC Calibrated Test Spring Range; 10 - 190 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 10 to 190 lbs. Data sheet included. Super accurate and individually tested on an Instron SF1240 testing machine.
