PROFORM BB1901 Calibrated Test Spring Kit, Heavy/Medium/Light

The PROFORM BB1901 Calibrated Test Spring Kit provides a practical solution for checking and calibrating ignition timing equipment and other compatible automotive testing applications. This kit includes inner and outer calibration springs made from durable steel with a natural finish, offering dependable performance during setup, verification, and service work.
The kit includes heavy, medium, and light spring configurations to support a range of calibration requirements. Its selection of spring rates helps technicians fine-tune equipment and achieve consistent results across different testing conditions. Designed for straightforward installation and use, the PROFORM BB1901 is well suited for professional garages, performance shops, and automotive enthusiasts who need reliable calibration components.
Built with durable steel construction, these springs are made for repeated use when properly installed and maintained. The inner and outer spring arrangement supports accurate operation of compatible PROFORM equipment while helping simplify adjustments and testing procedures. Refer to the equipment manufacturer’s instructions to confirm compatibility and proper installation before use.
Feature: Includes heavy, medium, and light calibration spring options
Feature: Includes inner and outer springs
Feature: Durable steel construction
Feature: Natural finish
Feature: Designed for calibration and testing applications
Feature: Suitable for compatible PROFORM equipment
Feature: Air-restricted shipping: No
Feature: Truck freight only: No

Features:

• Includes heavy, medium, and light calibration spring options

• Includes inner and outer springs

• Durable steel construction

• Natural finish

• Designed for calibration and testing applications

• Suitable for compatible PROFORM equipment

• Air-restricted shipping: No

• Truck freight only: No