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Front A-arms for the Associated RC-10 B6.0 through B6.3 and the ASC B6 and B6D. RPM held the hinge pin holes to tight tolerances so the suspension settings stay put. The clearance is no more than 0.0005 to 0.001 inch (.013 to .025mm), which is about 300% tighter than the roughly 0.003 inch (0.076mm) found in a new stock set. The outer hinge pins are held by in-line screws, and shoulders in the hinge pin holes replace the inner retaining screws. Each A-arm weighs 1.75 grams less than stock, or 3.5 grams less per pair.
