The Samix TRX-4M Brass Differential Cover is a great option for those looking to lower the CG of their micro crawler. Made from CNC machined brass, this differential cover will add 16g of low end weight.

ST Racing Concepts Traxxas TRX-4M Brass Lower Shock Spring Retainers. Intended for the Traxxas TRX-4M rock crawler, these brass lower shock spring retainers are an easy performance upgrade.

ST Racing Concepts Traxxas TRX-4M Aluminum Threaded Shock Set. These optional shock bodies are an excellent addition to the TRX-4M platform.

ST Racing Concepts Traxxas TRX-4M Aluminum Threaded Shock Set. These optional shock bodies are an excellent addition to the TRX-4M platform.

ST Racing Concepts Traxxas TRX-4M Aluminum Front Steering Link. This optional steering link provides reduced flex and improved steering response to the TRX-4M rock crawler.

ST Racing Concepts Traxxas TRX-4M Aluminum Front Steering Link. This optional steering link provides reduced flex and improved steering response to the TRX-4M rock crawler.