RPM A-arms for the Helion Dominus SC, SCv2 & TR are molded from a blend of engineering grade nylons for unmatched strength and durability. Crucial design elements include oversized bosses around both the hinge pins and the pivot balls to help prevent hard hits from ripping either part out of the A-arm. They also tightened up the tolerances around the hinge pins by over 0.005” (0.13mm) to reduce slop in the suspension system and improve retention of camber, caster and toe angle settings.
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