MR-4 Series Servo Saver Posts with Anodized Struts - Yokomo SD-200BA  [SD-200BA]

MR-4 Series Servo Saver Post Upgrade

The Yokomo SD-200BA is a replacement servo saver post kit built for MR-4 series servo saver assemblies found on scale RC drift cars. The blue anodized aluminum struts cut down flex compared with standard plastic posts, and the kit includes matching knurled nuts plus a servo saver spring to keep the original damping function intact.

Fit and role: these posts mount where the servo saver connects to the steering linkage, providing a firmer anchoring point while preserving the servo saver travel that protects the servo. The added stiffness helps deliver consistent steering response during drift setups where steering feel and repeatability are important.

Installation and tuning notes: remove the original posts and fit the SD-200BA struts, confirm full threaded engagement, and lock position with the knurled nuts without over-torquing. The supplied spring still limits shock to the servo, so check neutral centering and free travel after fitting. Small changes to servo saver preload or spring seating will alter steering return and damping; adjust incrementally and test on track.