AST astAST-150-300-61

The AST linear race spring is a single 150 mm coil spring with a 300 N/mm rate and a 61 mm inner diameter, intended for coilover-style suspension to deliver exceptionally high spring rates and altered ride height. Sold individually, it’s targeted at setups needing extreme stiffness and compatible damping; confirm that the 61 mm inner diameter matches your coilover assembly before installation.

AST Linear Race Springs - 150mm Length x 300 N/mm Rate x 61mm ID - Single