X5B-16mm Shock Piston 1.3

The Hong Nor X5B-16mm Shock Piston 1.3 (HN#423B) is a genuine replacement component for maintaining smooth and consistent suspension performance. Supplied by Hong Nor, this piston supports precise damping control when refreshing or tuning shocks built around a 16mm format.

Key Points

• Official Hong Nor spare part: HN#423B
• X5B-16mm Shock Piston 1.3 designation
• Intended for 16mm shock applications
• Ideal for restoring consistent damping characteristics

Tuning Notes

In RC shock tuning, the 1.3 specification commonly relates to piston flow characteristics and pairs with appropriate shock oil to achieve the desired rebound and compression feel. For best results, use matched pistons across an axle, select oil weights to suit track conditions and temperatures, and follow your model’s manual for assembly and setup guidance.