Pro Built® front axles come professionally assembled and ready to install in your TRX-4M™. Learn more...
Left and right brass steering blocks add 7 grams of valuable weight to the lowest part of your TRX-4m™ for improved anti-rollover stability and superior rock-climbing capability. Learn more...
Eliminate flex and increase steering precision in your TRX-4M™ by adding this aluminum servo mount. Learn more...