TAMIYA M1025 Hummer Front Knuckle Arm HM1021 by GPM  [HM1021]

Tamiya M1025 Hummer Aluminium Front Knuckle Arm - 1pr - GPM HM1021
Price:
USD$15.10
Brand:
GPM
Model:
HM1021
GTIN:
4894538075571
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Precision machined aluminium knuckle for structural upgrade

The GPM HM1021 aluminium front knuckle is engineered as an aftermarket replacement for the TAMIYA M1025 Hummer. CNC-machined from aluminium, the component replaces the OEM plastic knuckle to provide a more rigid steering pivot point and reduce deflection under load, improving repeatability during setup and running.

Fitment targets the TAMIYA M1025 Hummer platform and compatible TA-01 and TA-02 chassis variants listed below. Installation requires front suspension and linkage removal and reassembly using existing hardware. Observe correct thread engagement and recommended torque values for aluminium-to-steel joints to maintain serviceability.

Use this knuckle when upgrading for durability or when verifying steering geometry during tuning sessions. It functions as a mechanical replacement and has no effect on electronic calibration or drive system parameters.

Specifications

  • Item: Tamiya M1025 Hummer Aluminium Front Knuckle Arm
  • Material: Aluminium
  • Model Number: GPM HM1021
  • Compatibility: TA-01 / TA-02

What inspection steps are recommended before fitting?

Verify that wheel bearings, pins and existing fasteners are serviceable. Replace any components with play before fitting the aluminium knuckle to ensure accurate alignment.

Any precautions for torque and thread engagement?

Use moderated torque settings for aluminium parts and ensure adequate thread engagement; consider using steel inserts or correct grade fasteners where repeated removal is expected.

How does this affect setup checking?

Reduced knuckle flex yields more consistent caster and toe readings between runs, which helps when fine tuning steering trim and track alignment during competitive or frequent use.