This kit contains rubber O-rings created for the front push rod assembly on 1/12 on-road competition chassis from the YR-X12 series. Six pieces are included to replace worn rings and re-establish correct push rod seating.
Placed at the push rod pivot, the rings reduce side-to-side play and help maintain the push rod's centreline under load. They are a minor tuning and maintenance component that controls joint endplay rather than changing suspension geometry.
To fit: detach the push rod from the linkage, slide the O-ring into the pivot contact area, then reassemble and verify smooth articulation with no binding. Inspect regularly for flattening, nicks, or cuts and replace when necessary.
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