Yokomo YOKD170BK Standard Drift Spring Set 1.1 x 9.5 Coils (2pcs) Black  [YOKD170BK]

Standard drift spring set for tuning

This Yokomo YOKD170BK spring set is an R/C-scale accessory aimed at drivers who adjust suspension response for drift setups. Supplied as a pair of black coil springs, the listing specifies a 1.1 size measure and 9.5 coils with a regular pitch, traits that affect spring rate and travel within compatible shock assemblies.

Installation is straightforward: slide the spring onto a matching shock shaft or spring retainer, check preload and end-of-travel, then use incremental swaps to compare handling. Because spring pitch and coil count influence how quickly a shock compresses and rebounds, these springs are useful for tuning lateral grip and return behavior during controlled slides.

In practice, treat these springs as one variable in a tuning package alongside shock oil, piston choice, and sway settings. Keep tests systematic, change one variable at a time, and record results to determine whether the 1.1 x 9.5 profile moves your chassis toward desired drift balance.