SUSPENSION PLUS JAPAN
Who is SUSPENSION PLUS JAPAN?
Suspension Plus Japan is a premier Japanese manufacturer dedicated to producing high-quality coil springs for motorsport, track days, and everyday street and road cars. With a focus on innovation and performance, they craft products that cater to a wide spectrum of users—from competitive racers striving for split-second improvements to enthusiasts who value both ride comfort and aesthetic appeal. Elevate your driving experience with Suspension Plus Japan, where precision engineering meets unparalleled performance.
UC-01
TRACK & STREET
This spring is crafted from high-tensile steel, offering unparalleled stroke capacity. Engineered through cold forming, it boasts exceptional precision, an impressive number of coils, and a robust wire diameter that has undergone extensive testing. Its combination of flexibility and stiffness ensures resistance to sagging, allowing for optimal performance even when the wires are closely aligned. With its closed-end grinding technique, this spring achieves its target compression rate swiftly and efficiently, making it an ideal choice for demanding applications.
UC-02
STYLE
Specialised springs for each vehicle model, optimising style and ride comfort. The range includes lowering and lift-up springs, designed with a spring rate 10% to 15% higher than OEM specifications for enhanced comfort. The SWOSC-B (cold-rolled) or SUP9 (hot-rolled) steel is selected based on load requirements. Springs undergo low-temperature annealing for improved tensile strength and durability. The setting process applies a load beyond limits to prevent sagging, ensuring long-term safety and performance. The epoxy polyester powder coating is carried out for exceptional weather and corrosion resistance, with strict temperature control for impact resistance.
UC-03
COMPETITION
Designed for optimal performance, this racing spring features carefully selected steel and precise tolerance controls, ensuring quick response and a powerful start. With exceptionally stable rate characteristics, this spring excels under pressure. The strict production standards and cold-forming processes have resulted in a lightweight construction that doesn’t compromise on high rigidity. Experience the difference in your racing performance with this top-tier spring.
UC-04
PRECISION
In top-category races, where every millisecond counts, precision is crucial. What is needed is a spring that operates at a specified rate without any deviation when under load. The UC-04 is a custom-made ultra-precision spring, designed and crafted to meet the exact requirements of drivers striving for the highest performance. Each product is tracked by serial number and is packaged in a special presentation box, which includes a measurement inspection sheet and a storage bag.