RPM RPM81682 Front A-Arms ARRMA Kraton 4S Outcast 4S v2

RPM's RPM81682 Front A-Arms are a direct-fit upgrade for the 4S v2 ARRMA Kraton and Outcast, engineered from the ground up for maximum strength and improved suspension geometry. The arms reduce hinge pin slop for sharper steering response and more consistent camber, caster, and toe angle settings. A second shock mount hole positioned further outboard provides a lower suspension profile, dropping ride height for a lower center of gravity and better high-speed cornering stability. The arms are massive in cross-section and uniform in thickness across their entire length — built from RPM's ultra-tough engineering-grade nylon blend. Sold in pairs. Replaces stock ARRMA ARA330711.

Key Features

• Reduced hinge pin slop — improved steering response and consistent geometry settings
• Second outboard shock mount hole for lower ride height and reduced center of gravity
• Uniform full-length thickness — maximum structural rigidity
• Sold in pairs
• Replaces stock ARRMA ARA330711
• RPM engineering-grade nylon blend construction
• Limited lifetime warranty against breakage

Compatibility

• ARRMA Kraton 4S v2 (1/10, front)
• ARRMA Outcast 4S v2 (1/10, front)

Specifications