This front arm set is a replacement component for HPI Bullet vehicles and carries the model number BUL-18003-GU. Manufactured in gunmetal alloy for strength, the parts are made to fit Bullet 3.0 MT and ST front suspension layouts without altering chassis geometry.
Choose these arms when you need a tougher spare or a straightforward upgrade to cut down on flex compared with factory plastic arms. Fitting is standard: remove hubs and pivot pins, swap the arms, refit the original hardware and confirm full suspension articulation and steering travel. Typical hobby hex drivers are all that is required.
For tuning and rough use the gunmetal choice preserves alignment under impact and during hard cornering on nitro-powered scale off-road rigs. They do not meaningfully affect ride height; fine tuning belongs at the shock and toe/inset adjustments instead.
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