Description
The new progressive-type springs have been added to the SMJ silver line springs, popular among EP and GP touring car users!
These new-type springs are soft when the suspension starts moving and they become harder as the suspension stroke grows bigger. This new feature helps improve driving performance over small gaps and contributes to greater traction performance. These new-type springs also make steering response smoother.
Carefully selected materials and precisely wound it up in a variable pitch.
Wire diameter: 1.4mm
Total Coils: 5.375
Length: 20mm
Made in Japan
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