TRAXXAS TRX4M 1-inch Widened High-Adhesion Crawler Tires TRX4MZSP1213 by GPM  [TRX4MZSP1213]

1/18 TRX4M performance crawler tyres

A precision aftermarket tyre set optimised for low-speed, technical crawling on 1/18 TRX4M-compatible platforms. The tyres pair a butyl rubber tread with selectable foam inserts and an internal reinforcement ring to enhance sidewall support and resist material failure during sustained use.

Technical details from the manufacturer include a tyre dimension of 60mm x 25mm, a factory-installed 80-degree hard sponge inside the tyre carcass, and six 60-degree softened sponges supplied for setup variation. The tread compound is a super-soft 25-degree rubber formulation that the supplier documents as delivering about 35% more grip compared with plastic tyres.

Fitment and mechanical notes: the tyres are engineered for 1-inch wheel interfaces; 1/24 platforms such as SCX24 require a 1-inch wheel conversion before mounting. The clamping flange has an extended tongue and elongated screw locations to simplify installation and maintain clamping security.

Installation and tuning guidance: the kit provides a firmer insert plus softer replacements so technicians can dial sidewall stiffness against compliance. Employ the 80-degree insert for maximum lateral support, or fit the 60-degree sponges to increase contact conformity and bite on rough surfaces. The internal reinforcement and butyl compound together reduce water-induced slip and enhance tear resistance versus certain polymer blends.