Kyosho IF125B Front Universal Swing Shaft compatible with Inferno NEO 3.0 & 4.0  [KY-IF125B]

Inferno-compatible front universal swing shaft

The Kyosho IF125B Universal Swing Shaft (Front) provides a front drivetrain replacement solution for Inferno MP Series layouts that match the NEO 3.0 & 4.0 configurations. It is intended to return front-wheel driveline connection following wear or impact where the parts and chassis layout are equivalent.

Compatibility and role: listed for Inferno MP Series NEO 3.0 & 4.0 chassis arrangements, this shaft is used when a bent or worn front shaft affects front traction or steering feel. It is sold as a component-level replacement rather than an entire assembly upgrade.

Installation and tuning notes: the shaft fits into the existing mounting without extensive chassis changes in most cases. Before completing the install, check spline alignment and hub clearance and confirm that pins, hexes, and bearings are serviceable to prevent play or binding through suspension travel.

Practical advice: preserve original hardware where possible and inspect related walk shafts and universal joints during replacement. Replacing worn mating components together with the shaft ensures the benefit of a new part is fully realised when rebuilding a damaged front driveline.