BW3 – Balance Weigths – Notes Steel 8.0 Gram / .28oz Round – Weight 0.28

BW3 Steel Round Balance Weight -- 8.0 Gram (0.28 oz)

Failure mode context: a driveshaft that vibrates only above 65 mph but feels smooth at lower speeds is usually exhibiting a high-speed imbalance -- the correction mass needed is often in the 5-15 gram range. That's the BW3's territory. The round profile minimizes aerodynamic disturbance at speed compared to irregular or H-shaped weights, though the difference is measurable only on very high-speed applications.

Steel construction means standard MIG welding procedure applies -- clean the tube surface with a wire brush, tack at two points before full weld, and allow the tube to cool before the final balance check. Quenching with water is not recommended as it can cause localized tube distortion in thin-wall chromoly shafts.