This is a pair of Optional Pro Linear Shock Springs for the HPI Sport, Sport 2,
Pro, Pro 2, Nitro RS4, Mini, Mini Pro, Nitro RS4 2, Nitro RS4 RTR, Nitro RS4
Racer, Nitro RS4 Racer 2, Super Nitro RS4, and Nitro RS4 Mini.
Pro linear spring rate
Blue colored for 'harder' dampening
Two blue springs
Assembly onto the shocks.
Length: 27mm (1.06") Diameter: 13mm (.51") Spring Rate (gf/mm): 264
– If you need more information, use these HPI Racing resources –
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