This Arrowmax flywheel is a replacement component for Mugen MTX-5 based chassis, designed to change the inertial transfer between motor and clutch. The 7075 HARD tag indicates the high-strength aluminium alloy selected for dimensional stability under operating loads.
An aluminium flywheel modifies engine-simulated inertia on nitro and brushed systems in 1/8 and 1/10 scale RC machines, affecting how quickly revs increase and decay during throttle transitions. The part is intended as a direct spare or hop-up for MTX-series Mugen Seiki models where the mounting interface and geometry align with the original flywheel.
Fitting notes: remove the clutch per your chassis instructions, replace the factory flywheel with this unit using existing mounting hardware, and confirm there is no contact with the starter or pull-start before finishing assembly. After fitting, carry out gradual throttle checks to confirm expected changes in acceleration and idle stability, and re-check fasteners following initial runs.
Offered as an aluminium replacement flywheel for tuning and maintenance, this component is best validated on a test bench or controlled track session to confirm fit and performance effects.
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