California 1100 [PROGRESSIVE SUSPENSION] - Shock absorber springs for 12-Series & 412-Series

Shock absorber springs for California 1100

The PROGRESSIVE SUSPENSION brand shock absorber springs are specifically designed for the rear suspension of the California 1100. They belong to the 12-Series and are designed for use in heavy-duty applications. The springs are characterized by a simple progressive spring rate, which enables a coordinated spring hardness over the entire spring travel.

Technical characteristics

• Brand: PROGRESSIVE SUSPENSION
• Model: 12 series
• Mounting position: Rear
• Spring type: Simple progressive spring rate
• Progressive spring rate: 1.88 kg/mm to 2.68 kg/mm (105 lb/in to 150 lb/in)
• Length: 238mm (9.37 inches)
• Color/Surface: Black
• Number of pieces: Couple

Function and use

The shock absorber springs are designed for use under heavy loads and improve the suspension performance of the rear suspension. Thanks to the progressive spring rate, the suspension adapts dynamically to different driving conditions. This ensures uniform damping under low loads and increased spring action under higher loads.

The length of 238 mm allows for optimal integration into the chassis of the California 1100. The black surface protects the springs from corrosion and ensures a long service life. The product is supplied as a pair to ensure equal spring action on both sides.

Product group and use

These shock absorber springs belong to the “Suspension Group-Rear” product group and are part of the “Shock Springs-Spring Kits” category. They are compatible with PROGRESSIVE SUSPENSION's 12-Series and 412-Series shock absorbers and are suitable for replacing or upgrading the original rear suspension.