This anodized-red aluminum front knuckle arm is made as a direct replacement for the TAMIYA BB-01 (BBX) platform. It is intended to replace the OEM plastic knuckles to provide a firmer steering pivot and greater abrasion resistance at the steering and suspension interface.
Fitment follows the original BB-01 (BBX) mounting points and accepts existing steering links and bearings without chassis modification. During installation verify clearance around the tie rods and torque the hex screws to remove play but avoid binding steering movement.
Tuning tip: the increased stiffness from aluminum knuckles reduces flex under load, which sharpens steering response and can modify roll behavior. This upgrade suits drivers seeking crisper steering or a more durable part for regular heavy use; remember to monitor linkages and bearings for changes in wear.