Product Description:
Specially tuned progressive curve specific for the AE86 rear suspension. The progressive springs, versus linear(previous version), absorbs small bumps on the road increasing rear traction which means more grip and less hops.

BGRS Recommended spring rate table for AE86s:
Front Spring Rate (kg/mm) | Rear Spring Rate (Kg/mm) |
8 | 5-5.5 |
7 | 4.5-5 |
6 | 4k-4.5 |