Upgrade your driving experience with the FiveStar Hobbies Knockout adjustable Brass outer arm for your Associated hub. Crafted with precision and durability in mind, this Brass outer arm replaces the Delrin and can be easily used for both left and right turns. Compatible with 30005 and 30007, it's a must-have for any serious racer.

The 30005 FiveStar Hobbies Rear Adjustable Arms are designed for Assembly Required installation on the B5, B6, B6.1, B6.2, and B6.3 models. These arms offer improved performance with inner and outer arms, included hardware, and plastic spacers. Upgrade your vehicle with these high-quality, durable arms.

ARM WEIGHS 45 GRAMS EACH