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

MP7.5 front gearbox alloy upper bulk

This alloy upper arm bulk is made for use with the Kyosho Inferno MP7.5 front gear box as an aftermarket option. It sets the front suspension geometry to a caster of 2deg and toe-in of +5deg as indicated in the product title. The item is supplied as 1pcs and is intended to replace the factory front gearbox bulk on the MP7.5 chassis.

The component provides two main functions: it replaces the stock plastic bulk for increased structural rigidity and it establishes the fixed geometry values for caster and toe-in up front. During installation confirm the front gearbox mounting faces and, where applicable, reuse OEM fasteners; the bulk is designed to interface with the MP7.5 front gearbox without altering other chassis components.

For setup, treat this bulk as the starting point when adjusting roll centre and steering response. Because the caster and toe-in are determined by the bulk, use steering link adjustments and toe/camber blocks to refine handling for different track surfaces or practice sessions.