Yokomo YOKD119Y 25mm Super Drift Spring (Medium-Soft, Yellow Mark)  [YOKD119Y]

YOKD119Y Drift Spring Technical Summary

This RC-scale suspension spring is built for tuning drift setups and general suspension adjustment on model cars. The yellow mark denotes a medium-soft rating, while the 25mm free length matches many compact shock bodies used in 1/10-scale applications.

For installation, follow standard coil-over spring retention: compress the spring evenly, locate it on the lower retainer, and secure the upper retainer so the coils sit squarely. Verify the spring is concentric with the shock shaft to prevent binding through full travel.

Tuning guidance: change springs one step at a time and record the effect on roll and yaw. A medium-soft spring like this gives a softer initial response than stiffer rates, so adjust damping and anti-roll settings accordingly to keep transitions predictable.