Steering Horn Upgrade for MR-4TCSD - Yokomo YOKSD204  [YOKSD204]

Steering Horn Upgrade Notes for MR-4TCSD

This Yokomo YOKSD204 servo horn set is supplied as an RC-scale replacement for MR-4TCSD chassis layouts, acting as the link between servo output and steering linkages. The focus here is on fitment, setup technique, and the effect on steering dynamics rather than manufacturing details.

Compatibility considerations: intended for MR-4TCSD-pattern installations; double-check your servo spline count and the horn's mounting holes before fitting. The product is meant to be a direct swap where MR-4TCSD compatibility is stated and maintains typical 1/10 touring car steering geometry.

How to fit: remove the existing horn fastener, line the servo to neutral, place the horn on the spline with the arm centered, then secure it with your servo's retaining screw or clip. After installation, confirm linkage geometry and adjust transmitter endpoints and trims to avoid binding.

Impact on handling: changing horn length or arm position modifies the mechanical leverage and thus steering sensitivity and servo effort. Shorter lever arms quicken response but increase load; longer arms soften response and reduce torque requirement. Make measured changes and validate endpoints after each tweak.