TRX4M 1.0 Inch High-Adhesion Crawler Tires TRX4MZSP24A TRX4MZSP24 by GPM  [TRX4MZSP24A]

1.0 Inch Scale Crawler Tires for TRX4M Bronco

This replacement tire set is created for TRX4M 1/18 scale rigs and is supplied under part TRX4MZSP24A. The tread is molded in a 25 degree super-soft butyl rubber to maximise grip, and each tire includes a foam insert plus internal reinforcement to help preserve shape and extend service life.

The compound is specifically butyl rubber rather than TPU or TPR, delivering higher adhesion on damp rock and trail surfaces. Reinforcement ribs and the standard foam insert support the sidewall for steady low-speed crawling. The inner diameter is deliberately snug to cut wheel slip, and the bead area has a long tongue for reliable clamping to the rim.

Fitment notes: these are sized for 1.0 inch wheels found on TRX4M 1/18 models and are compatible with wheels that accept a longer fixing screw and narrow clamp thickness. The wheel design allows single-handed compression of tire and rim during installation, simplifying mounting in the field.