AST astAST-140-90-61

The AST Linear Race Spring is a single 140 mm suspension spring with a linear 90 N/mm rate and a 61 mm inner diameter. It delivers a predictable linear response for precise spring-rate control, helping you tune ride height and handling. Suited to coilover-style setups, its consistent compression characteristic aids repeatable suspension tuning for track and performance use.

AST Linear Race Springs - 140mm Length x 90 N/mm Rate x 61mm ID - Single