Tamiya 58331 TB Evolution IV Touring Chassis  [58331]

Heritage meets precision in the TB Evolution IV

The Tamiya 58331 TB Evolution IV continues the Evo tradition with focused improvements aimed at racers who value precise feedback and modular setup options. This chassis blends lightweight construction with practical tuning features for track use.

Carbon fibre deck design for consistent handling

The twin-deck layout uses a thicker 2.5mm lower deck with a 2.0mm upper deck made from carbon fibre reinforced polymer, delivering rigidity where it matters while keeping the overall mass low for quicker direction changes.

Optimised power transfer and suspension parts

A sealed bevel gear cover shields internal gears from grit, helping retain smooth power delivery. The three-piece aluminium prop shaft lowers rotational inertia and the reduced-mass suspension components help keep tyres planted during quick transitions.

Configurable geometry for different race tracks

Drivers can choose between two hub carrier types to set caster at 2 degrees or 4 degrees, and the rear toe can be adjusted with optional Tamiya mounts. These choices make it straightforward to tune front bite and rear traction for different circuits.

The TB Evolution IV is aimed at tuners and racers who want a stable baseline with room for setup refinement and component swaps to match local track demands.