Progressive Drift Spring Kit Soft Blue 1.1 x 10.5 (2pcs) Yokomo YOKD171BL  [YOKD171BL]

Setup-oriented progressive springs for drifting

Yokomo's YOKD171BL springs are a two-piece progressive pair intended for 1/10-scale drift cars, giving builders a way to refine suspension response. Finished in soft blue with a 1.1 x 10.5 turns progressive wind, these springs are designed for use in drift shock assemblies.

Role in handling: progressive rate behaviour means a softer initial section that increases in stiffness with compression, helping to control lateral load transfer and maintain predictable slide angles. Use them to tune entry aggression, mid-drift balance, and exit stability by adjusting placement or preload between axles.

Practical fit notes: always verify the spring bore against your shock shaft and ensure the spring seats cleanly in the cup. Compress with suitable collars or preload tools and avoid forcing springs onto incompatible shafts. Test in small increments to isolate the effect of each change.

Tuning approach: combine these springs with stable damper settings and consistent tyres, document each adjustment for repeatability, and revert to known baselines if behaviour becomes inconsistent. For RC drift practice and competitive use only.