TRX4 Trail Crawler 1.9'' Aluminium Wheel Set Upgrade - ZSP052 by GPM  [ZSP052]

Upgrade Wheels for TRX4 Crawling

The ZSP052 1.9'' wheel set is an aftermarket aluminium replacement intended for TRAXXAS TRX4 trail crawlers. Replacing plastic wheels with machined aluminium parts increases rim strength and provides external ballast to help technical crawling.

The kit described in the source contains wheel discs, outer and inner rims and cap head screws in M2.5x12 and M2.5x8 sizes. Each assembled wheel is listed at approximately 107g and this additional mass should be considered when setting shocks and choosing tyre construction.

• Included parts: Wheel Disc 2pcs, Outer Rim 2pcs, Inner Rim 2pcs, Cap Head Screw M2.5x12 2pcs, Cap Head Screw M2.5x8 7pcs.
• Material: aluminum construction as noted in the source, intended to improve durability and maintain true rim profile.
• Weight role: single wheel weight ~107g, usable as an external weight to increase traction in crawling scenarios.

Fitment notes: assemble using the supplied M2.5 cap head screws, ensure correct thread engagement and avoid over-torquing to prevent stripping. On tyre fitment, check bead seating and confirm rotor and hub clearance with TRX4 axle housings and wheel hexes; the source does not specify any adapters.

Setup guidance: heavier aluminium wheels change unsprung mass which can aid traction on steep terrain but will modify steering response and suspension behaviour; retune preload and tyre selection to match the new mass.