The is a high-end 1/10 scale R/C touring car chassis kit released in early 2026 as an evolution of the TRF421. This guide covers the assembly and maintenance essentials based on early documentation and racer feedback. 🛠️ Assembly & Build Tips
: Download the TRF421X Assembly Manual for the full parts list and exploded diagrams. The is a high-end 1/10 scale R/C touring
: To prevent oil leaks, replace the stock O-rings with high-quality X-rings and use matching damper rod guides. The is a high-end 1/10 scale R/C touring