Yokomo YOKD170BK 1.1 x 9.5 Standard Drift Springs (2pcs) Black  [YOKD170BK]

Tuned standard springs for drift control

This Yokomo YOKD170BK spring set is aimed at drivers who tweak suspension response for drift driving. Supplied as a pair of black coil springs, the specification lists a 1.1mm wire diameter and 9.5 coils with a regular pitch, factors that influence spring rate and travel when used in compatible shock assemblies.

Fitting is simple: slide each spring onto a matching shock shaft or onto the spring retainer, set a consistent preload and check end-of-travel, then test handling by swapping springs incrementally. Because coil count and pitch affect compression and rebound speed, these springs help refine lateral grip and return behavior during controlled slides.

Treat these springs as one variable in a measured tuning routine alongside shock oil, piston selection, and swaybar adjustments. Change a single element at a time and record results to determine whether the 1.1 x 9.5 profile moves your chassis toward the intended drift balance.