TRX4 1.9'' CNC-Style Aluminum Wheel Upgrade - ZSP052 by GPM  [ZSP052]

Precision Aluminum Wheels for TRX4 Use

The ZSP052 1.9'' wheel set is an aftermarket aluminium replacement designed for TRAXXAS TRX4 trail crawlers. Machined aluminium discs and rims replace the stock plastic components to deliver improved dimensional stability and consistent rim roundness under load.

Kit contents listed in the source include wheel discs, outer and inner rims, and M2.5 cap head screws in 12mm and 8mm lengths. The listed assembled wheel mass is 107g, a specification to consider when calculating unsprung mass and tuning shock preload for optimal axle articulation.

• 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, chosen for durability and to retain accurate rim geometry during crawling stresses.
• Weight role: single wheel weight ~107g, used as external ballast to improve traction in technical crawling scenarios.

Assembly guidance: use the supplied M2.5 cap head screws, verify proper thread engagement and avoid over-torquing to prevent thread damage. When mounting tyres, confirm bead seating and maintain clearance with TRX4 axle housings and wheel hexes; the source specifies no additional adapters.

Performance note: the added unsprung mass from aluminium wheels alters damping and steering feedback; account for the 107g per wheel when selecting shock preload, spring rate and tyre compound for balanced crawling performance.