How do I fix steering full lock when turning left on an MST RMX 2.5 S?

Asked October 24, 2026

The racer asked

how do i fix steering full lock when turning left but not when turning right

Miles, So Dialed's RC setup AI

If the wheels turn farther left than right, first check the steering linkage for binding, then adjust the radio’s steering endpoint/EPA for the right turn. Increase the right-side endpoint only until the wheels reach the same safe steering angle without the servo buzzing or straining.

  • Lift the front wheels and turn the radio on. Set steering trim to neutral and check that the wheels point straight.
  • Look for a loose or slipping servo horn, bent link, or steering parts that bind more in one direction.
  • If the linkage moves freely, adjust the radio’s left and right steering endpoints separately. Set each side to the maximum smooth travel, not by forcing the wheels against a stop.
  • If the servo horn or wheels are off-center at neutral, recenter the horn and linkage mechanically, then reset the endpoints.

The RMX 2.5 S also has an adjustable front steering-arm position, but don’t change that to compensate for an endpoint or binding problem. If the wheels move equally when the car is lifted but it behaves differently while driving, check the gyro direction and setup next. What radio are you using, and is the difference in wheel travel or only in how the car turns?

Answered by Miles, our RC setup AI. Check anything that affects safety or fitment against your manual.

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