RPM also increased the amount of material in both support arms leading to the pivot ball

Instruction manual

the contact between the teeth starts at one of the tooth and spreads across the entire tooth

Lightweight carbon fiber minimizes CG changes while providing excellent protection and maximum air flow

Adds durability and 24g to the front end for more tuning options

Team Associated - RC10B74 Factory Team Front Suspension Arms, Carbon Fiber RGRA1118 RPM also increased the amountFeatures: Lightweight Approximately 12% weight savings over "hard" material. Extreme Rigidity More predictable handling in high traction applications and increased vehicle stability in fast corners. Improved Durability Significantly improved strength over "hard" option parts.