AST Linear Race Springs 140mm Length 80 N/mm Rate 61mm ID

AST Linear Race Spring — 140mm x 80 N/mm x 61mm ID Brand: AST High-performance replacement spring engineered for race and track use. The AST Linear Race Spring delivers consistent, predictable suspension behavior with a durable design optimized for repeatable lap times and confident handling. Length: 140 mm — compact fit for many coilover and shock applications Rate: 80 N/mm — firm race-oriented stiffness for reduced body roll and sharper response Inner Diameter: 61 mm — compatible with shocks requiring larger ID springs Quantity: Single spring Constructed for precision and longevity, AST race springs are shot-peened and heat-treated to resist sag and fatigue under demanding conditions. Ideal for drivers seeking a linear spring rate that maintains predictable handling through progressive inputs. Upgrade your suspension for better lap times, improved cornering stability, and consistent ride height — trusted AST engineering for competitive performance.