Kyosho Mini Inferno 47mm Graphite Main Shaft by GPM GMIF1237  [GMIF1237]

Graphite main shaft overview

This GPM aftermarket main shaft is produced for Kyosho Mini Inferno users and is supplied as a single pair (1pr). The shaft combines a graphite centre section with alloy end fittings to retain alignment where the shaft connects to the gearbox and driven components. The 47mm designation refers to the sealed length used in Mini Inferno drivetrain assemblies.

Fitment note: this part is intended for Kyosho Mini Inferno model variants. Verify the original shaft length and end fittings on your car before replacing, as the shaft interfaces must match the existing gearbox hubs and couplers. This is an RC-scale component designed for model use only.

Installation guidance: remove the rear gearbox cover and extract the existing main shaft assembly according to your model's service routine, then slide the GPM shaft into place ensuring the alloy ends seat correctly in the gearbox supports. Inspect seals and bearings during service and replace any worn items; the shaft itself is a direct swap when end interfaces match.

Tuning role: swapping to a graphite-centred shaft with alloy ends can help maintain straightness under load and may reduce rotational play compared with worn stock components, making it useful for routine maintenance and light hop-up upgrades focused on drivetrain responsiveness.