Performance Tuning Pack - Tamiya 42278 TRF Large Diameter Damper Spring Set for RC Cars  [42278]

Fine-tune your touring car with Tamiya suspension springs

If you want more control over your RC touring car, the Tamiya 42278 TRF Damper Large Diameter Spring Set is a hands-on way to adjust handling. Built for TRF dampers, this spring set helps you dial in chassis balance and response on different tracks.

Three spring rates to match track conditions

This kit contains soft, medium and hard springs so you can change compliance to suit grip levels or driving style. Each coil has a larger inner diameter than Tamiya standard parts, with a 14mm inside diameter that supports more predictable behaviour under load.

Colour-coded tubes for quick swaps

Colour-coded tubing is included to let you identify spring rates at a glance and swap setups quickly between practice runs. That simple visual cue reduces setup time and keeps your focus on lap times.

Recommended fitment and pairing

These springs are intended for TRF-style dampers and are best used together with the Tamiya Item 42192 TRF Damper Large Diameter Retainer (4pcs.) to secure correct alignment and performance.