Upgrade your coilovers with TEIN’s Standard Straight Springs, part number SY090-01225. These high-performance springs are designed for tuning setups and coilover systems that use a 70 mm inner-diameter spring seat—ideal for custom builds or specialists replacing springs in adjustable systems.

Key Features

• Linear, straight-spring design with a consistent outer diameter—ensures predictable behavior under load

• 9 kgf/mm (~500 lbs/in) spring rate—well suited for sporty handling setups or coilovers with height adjustability

• 70 mm inner diameter and 225 mm free length—fits many adjustable setups with corresponding spring seats

• Built from TEIN’s high-tension silicon-chromium (SWOSC-KV) wire for durability and performance

• Supplied as a set of two springs—ready to install on front or rear with appropriate matching setup

*Photos for marketing purposes only. Actual product may vary in appearance / style.