Tamiya 42139 TRF511 1/10 Off-Road Race Chassis  [42139]

Track-Tested Chassis Development

The Tamiya 42139 - 1/10 RC TRF511 Chassis Kit carries forward lessons from the TRF501X to offer a more serviceable and agile off-road platform. It is aimed at modelers who want precise handling and quick turnarounds between runs.

Service-Friendly Parts and Weight Savings

The TRF511 keeps the original layout but swaps in lighter components and service-oriented designs. Key improvements include stronger drive belts to reduce slack and reshaped suspension arms to improve responsiveness, based on real lap data to keep the chassis both light and reliable.

Improved Weight Layout for Better Handling

Repositioning the battery helps fine tune weight distribution for improved jump control and landings. The separate upper and lower center bulkheads speed up motor access and simplify gear adjustments, delivering a chassis that balances stability with sharp cornering.

This kit suits hobbyists who want a race-capable platform that responds well to tuning and upgrade parts.