This aftermarket alloy rear arm bulk is designed for RC-scale use on Kyosho Mini Inferno ST and Mini Inferno 09 models, offered as a 1pc set with mounting screws included. The component replaces the stock rear arm bulk to provide a durable aluminum alternative intended for chassis maintenance and incremental geometry adjustment.
Compatibility is limited to Kyosho Mini Inferno ST and Mini Inferno 09 as stated in the product name, so confirm your chassis model before purchasing. The part is described as alloy construction and a 1 degree orientation, used where small changes to rear geometry are needed during tuning or repair.
Installation notes: remove the rear gearbox cover and existing arm bulk, fit the alloy unit in the same orientation as the original, and secure using the supplied screws. Use appropriate hex driver and moderate torque to avoid thread damage in the gearbox housing. After fitting, verify wheel alignment and suspension travel before running.
Tuning role: the 1 degree specification offers a small, consistent change to rear geometry that can be used for fine tuning handling and suspension response on track or during club sessions. As with all RC-scale upgrades, test incremental changes and log results to find the preferred setup.
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