X12’21 Front coil springs for 4mm kingpin
• Front coil spring for X12’21
• For 4mm kingpin
• Complete range for fine tuning
• The higher the C value the stiffer the spring
• Powder color-coated for quick & easy identification
• Each color in a set of 2pcs
Ultimate-match front coil shock springs for pan car front suspension with 4mm king pin axle offer an additional range of choices to fine-tune your car. Powder color-coded for quick & easy identification. Silver color. Set of 2.
Developed through extensive testing and racing experience. Stiffness is controlled by the thickness of the wire and also by the number of coils; softer springs have a lower “C” value, while stiffer springs have a higher “C” value.
#372186 Front Coil Spring for 4mm Pin C=1.5-1.7 – Gold (2)
#372187 Front Coil Spring for 4mm Pin C=1.8-2.0 – Silver (2)
#372188 Front Coil Spring for 4mm Pin C=2.1-2.3 – Black (2)