Kyosho Inferno MP7.5 Front Upper Arm Bulk Alloy MP7509B by GPM  [MP7509B]

Alloy upper arm bulk for front gearbox

This RC-scale alloy upper arm bulk is intended for use with the Kyosho Inferno MP7.5 front gear box as an aftermarket upgrade. The component sets the front suspension geometry to caster 2deg and toe-in +5deg and is supplied as 1pcs for direct replacement of the front gearbox mounting bulk on the MP7.5 chassis.

Functionally the part replaces the stock plastic bulk to provide a rigid mounting area while simultaneously defining the specified caster and toe-in at the front. During installation confirm the front gearbox mounting interfaces and retain OEM fasteners where applicable; the design is intended to align with the MP7.5 front gearbox without requiring changes to other chassis components.

Use this bulk as the reference geometry when adjusting roll centre and steering characteristics. Because caster and toe-in are established by the bulk, further tuning should be achieved via steering link adjustments and toe/camber block selection to reach the desired behaviour for racing or practice environments.