Tamiya 58299 - 1/10 TB Evolution III touring car kit, TRF-style 1/10 shaft-driven 4WD  [58299]

Tamiya 58299 - 1/10 TB Evolution III: a measured update to a long-standing TB-series touring chassis

The TB Evolution lineage traces design ideas that began with early center-shaft layouts and evolved into a family of shaft-driven touring car chassis. The 58299 TB Evolution III carries that heritage forward with a focused set of mechanical changes: relocated motor and battery placement, narrowed lower carbon deck, revised driveline components, and targeted mass reduction. The result reads as a practical evolution rather than a reinvention; the kit concentrates on chassis balance, smoother drivetrain rotation, and parts carried over from established TRF-derived hardware.

Key mechanical changes and chassis intent

The TB Evolution III repositions the motor to the right side and locates battery packs to the left, a layout intended to reduce driveline-induced steering disturbance and to stabilize throttle feel. The lower carbon deck has been slimmed by 5 mm to help centralize weight and to reduce chassis rubbing in aggressive cornering. New lightweight differential outdrives and a revised center drive shaft aim to lower vibration and improve efficiency through the shaft-driven 4WD drivetrain. An aluminum spur gear adaptor and a larger spur help reduce driveline losses.

Suspension and drivetrain details

Suspension elements are drawn from the 414MII lineage, including arms, uprights, and adjustable suspension blocks that offer precise roll-center and anti-squat/anti-dive ranges. The front one-way unit mirrors the smooth-rotation design used on related TRF-derived models. Bulkhead removal and other targeted component changes deliver a measurable weight reduction, which shifts the kit toward a more responsive steering character without adding exotic construction techniques.

Where this kit fits for hobbyists

The TB Evolution III is presented as a kit for builders who value a robust, shaft-driven touring platform with a blend of carbon and alloy components. Its specification suite and parts compatibility with TRF-influenced hardware make it relevant to hobbyists setting up full-time 4WD touring layouts, and to collectors who prefer historically consistent TB-series architecture in their model lineup.

The TB Evolution III kit presents targeted refinements to the TB-series formula: drivetrain smoothness, a narrower carbon lower deck, and measured weight savings. It is appropriate for hobbyists who prefer a TRF-influenced shaft-driven touring platform and who prioritize mechanical consistency and parts compatibility.