Kyosho IFW167 50T Lightweight Spur Gear ST-R Blizzard Parts which suggests it carries additional

which suggests it carries additional content

This Device is for Airplane Modelers that have their Engines

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Kyosho IFW167 50T Lightweight Spur Gear ST-R Blizzard Parts which suggests it carries additionalA 50 tooth lightweight spur gear for Kyosho's Inferno ST R and related platforms. The spur gear takes drive from the clutch bell and passes it into the centre differential, so it sits at the point where all of the engine's power enters the drivetrain. Tooth count sets the final drive ratio alongside the clutch bell, which is the main lever you have for matching the car to a track: fewer teeth gears the car taller for top speed, more teeth gears it