GPM CK021 Heavy-Duty Aluminum Knuckle Arms for HPI Crawler King  [CK021]

GPM Aluminum Knuckle Arm Upgrade for Crawler King

Fit the HPI Crawler King with GPM's tough, precision-engineered aluminum front and rear knuckle arms to boost steering control and part longevity. The set is aimed at hobbyists who want a stiffer, more reliable steering setup without complex modifications.

Key Benefits

• Made from durable aluminum to resist wear and flex
• Engineered to sharpen steering precision and quicker response
• Direct compatibility with HPI Crawler King models for a clean fit
• Includes hardware for straightforward installation