If you are looking for a set of tires and wheels that can handle any terrain and enhance the performance and appearance of your 1/18 TRX-4M, look no further than the NHX RC 1.2" Crawler Tires w/ Aluminum Beadlock Wheel (4). These tires and wheels are specially designed for 1/18 scale RC crawlers, featuring:

• Super soft and sticky rubber tires that provide excellent grip and traction on rocks, mud, sand, and snow. The tires have a deep groove tread pattern that improves ground clearance and trafficability. The tires are 62 mm in outer diameter and 24 mm in width, making them wider and larger than standard 1.0 tires.
• Aluminum beadlock wheels that securely lock the tires onto the rims without the need for glue. The wheels have a 7 mm hex size and a negative offset of 31 mm, which brings the wheels away from the center of the vehicle and improves stability. The wheels have a sleek and stylish design that complements the tires and adds a touch of realism to your crawler. 
• Easy installation and compatibility with most 1/18 scale RC crawlers, especially the TRX-4M. The package includes 4 tires and 4 wheels, as well as 4 adapters and 16 screws for mounting. You can easily swap your old tires and wheels with these ones and enjoy a new level of performance and fun.