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

Front universal swing shaft for Inferno NEO family

The Kyosho IF125B Universal Swing Shaft (Front) is an RC replacement part designed for front drivetrain use on matching Inferno MP Series layouts. It installs where the chassis and component arrangement match the Inferno NEO 3.0 & 4.0 family, helping recover front-wheel drive function following wear or impact.

Compatibility and role: specified as a front universal swing shaft for Inferno MP Series NEO 3.0 & 4.0 chassis, this component is intended when a bent or worn front shaft is degrading steering feel or front traction. It replaces the worn part at component level rather than serving as a full assembly upgrade.

Installation and tuning notes: install as a direct replacement without major chassis modification, checking spline alignment and clearance at the hub and gearbox interfaces before final assembly. Confirm pins, hexes, and bearings are serviceable because small alignment or bearing problems often show as wheel play or binding through full suspension travel.

Practical advice: retain original hardware when possible and inspect the connected walk shafts and universal joints for wear during replacement. Reusing worn mating components can mask the benefit of a new shaft, so replace associated parts as needed when rebuilding a damaged front driveline.