421x Apr 2026

: Apply a thin layer of super glue (CA) to the edges of the carbon fiber chassis plate. Focus on the front and rear thirds to prevent delamination during impacts.

For detailed step-by-step instructions, use these professional resources: : Apply a thin layer of super glue

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 This guide covers the assembly and maintenance essentials

: While the lower arms are durable, the upper suspension arms are softer and may deform after hard crashes or 5–10 battery packs. Check their alignment regularly. : The default manual settings for belt tension

: The default manual settings for belt tension can be too loose. Manually adjust for a "snug but free" feel to avoid skipping under heavy braking or acceleration. 🏎️ Tuning & Parts Upgrades Go to product viewer dialog for this item.

: The kit includes multiple top deck options (one-piece vs. two-piece). Use the two-piece deck for more flex and mechanical traction on lower-grip surfaces.

Building a TRF-level kit requires precision and a few specific techniques to ensure durability and performance.