Tamiya 5005032 Rear Coil Spring 58174/118  [5005032]

Rear coil spring for F-1 chassis

This rear coil spring is an RC-scale replacement part intended for the rear suspension of compatible F-1 style Tamiya chassis. It is identified by the internal designation 58174/118 and intended to restore or alter rear suspension response without modifying the shock body itself.

Use this spring when replacing worn rear springs or when adjusting rear-end behaviour for handling balance. Installation typically involves removing the rear shock assembly, exchanging the spring, and reassembling with the same shock cap and spring retainer; no special tools are needed beyond standard RC hand tools. Verify fit on the F101/102 Group C F-1 style mounting arrangements before use.

For tuning, combine spring swaps with adjustments to shock oil, preload, and mounting positions to achieve desired roll and traction characteristics. Keep setup notes when testing changes so you can reproduce preferred configurations for different track conditions.