Team Associated ASC81640 RC8B4 Steering Block Arms

These aluminum steering block arms for the RC8B4 use the plus one configuration, raising the steering link mounting point relative to the standard arm.

That change alters front roll center and Ackermann geometry, giving racers a straightforward way to adjust steering response and front grip without changing shocks or springs. Because the arms are machined from aluminum rather than molded, they resist bending and hold steering geometry precisely under load, which keeps the front end consistent through a long main and after the contact that comes with racing.

This set fits the RC8B4.1, RC8B4.1e, and RC8B4.2 EURO, bolting to the steering blocks in the factory locations using the standard hardware, so fitting them requires no modification to the car. They work both as a direct replacement for damaged or worn arms and as a geometry tuning upgrade over the kit parts. Install them as a matched pair so the left and right sides share the same steering geometry and the car turns evenly in both directions.