GPM Racing Aluminium Hex Adapters 12mm Thick-20pcs Set for Traxxas 1/10 TRX4 (TRX4010/12MM)

Precision 12mm Wheel Hex Adapters

This aluminium wheel hex adapter set is engineered for TRAXXAS TRX4 Trail Crawler applications and is identified as model TRX4010/12MM. The adapters increase hex thickness to 12mm (+6mm) to move wheel mounting faces outward, reducing radial and lateral play at the hub and widening track for improved low-speed stability during technical crawling.

Components are machined for accurate fit to standard TRX4 wheel hex hubs and are compatible with front CVDs and rear drive shafts that accept wheel hexes. Installation follows the stock wheel mounting pattern and uses the supplied fasteners and shims to establish correct axial preload and clamp. These adapters are intended for model use on TRX4 Trail Crawler platforms only.

Technically, the thicker hex reduces the gap between the hex and wheel bore, which improves contact area and reduces micro movement under load. Fit these parts to fine-tune handling, reduce wheel hub slop, or to pair with wheels offering increased backspacing for a wider stance.

Packing includes

• Wheel hex adapters +6mm – 2pcs
• Stainless Steel Screw Shaft M4*2.5*11.8 – 4pcs
• Shims 5mm – 4pcs
• 5mm Metal Washer – 4pcs
• Stainless Steel Hex Socket Screw – 4pcs

This item is compatible with

• TRAXXAS TRX4 Defender Trail Crawler

What torque or fastening method is recommended?

Tighten hex socket screws to secure the adapter without over-clamping the wheel material; use the supplied shims to set minimal axial play and verify smooth rotation before final torqueing.

Will these adapters affect driveline angles?

The small lateral offset has negligible effect on driveline geometry in typical TRX4 builds, but check clearance at inner wheelarch and steering link travel when combining with large tyres.

Are modifications required to fit these adapters?

No chassis or driveline modifications are normally necessary when using stock TRX4 hubs; the kit includes the fasteners and shims needed for correct installation in standard configurations. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.