MR-4TC Front Steering Ball-End Upgrade for SD/BD - Yokomo YOKSD414KB  [YOKSD414KB]

Yokomo SD-414KB - King Pin Ball Stud for MR-4TC SD/BD
Price:
AUD$6.82
Brand:
Yokomo
Model:
YOKSD414KB
Please kindly input your name and email address, we will inform you once we have the restocking.
Or you may find similar product under the
category
Write a review

How this stud changes steering geometry

This Yokomo YOKSD414KB king pin ball stud is an aftermarket replacement made for MR-4TC SD and BD chassis variants. As the ball-end in the front steering linkage, it lets racers experiment with minor geometry shifts to tune steering feel and roll behavior.

When adjusting setup, small changes in ball location or ball size will affect initial turn-in, mid-corner balance, and bump steer. Make one change at a time and run controlled tests to evaluate the effect. Keep installation secure and avoid over-torquing to preserve threads and part alignment.

For tuners, swapping ball studs is an economical way to dial steering characteristics without altering major suspension components. Track testing and iterative changes are the recommended approach to reach the desired handling balance.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Will changing ball position reduce bump steer?

Adjusting ball position can influence bump steer; moving the effective ball center will alter the arc of the steering link during suspension travel. Test changes incrementally to observe the net effect on handling.

Can this be used for quick on-track swaps?

Yes, the stud is a simple swap on MR-4TC SD/BD front hubs, making it convenient for quick setup trials between practice runs when fine-tuning steering response.

Does ball size selection matter?

Ball diameter and seating shape influence steering feel and compliance. Use documented sizes compatible with your hub and test how different sizes change turn-in and mid-corner behavior.

Copyright © 2008-2026 rcjaz.com.au All rights reserved