Kyosho IS106-7514 84mm Big Shock Spring Gray Bigfoot Parts Molded from durable plastic

Molded from durable plastic

They're 100' scale length when used together

9-3/4" (248mm) double track straight sections

87" (200mm)

One Municipal Building

Kyosho IS106-7514 84mm Big Shock Spring Gray Bigfoot Parts Molded from durable plasticA pair of 84mm Big Bore shock springs, wound with 1. 4mm wire over 7. 5 turns and color coded gray, in the M medium length class. Kyosho's numbering encodes the specification directly: 7. 5 turns of 1. 4mm wire at an 84mm free length. The color code lets you identify a spring at a glance in the pit box rather than measuring it. Within a fixed wire diameter and free length, fewer turns means a firmer spring, so at 7. 5 turns this sits toward the firm