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

which suggests it carries additional content

Losi 5x11x4 Rubber Sealed Ball Bearing (4)

Traxxas Forward Only Conversion Kit Revo

FEATURES: Hard anodized CNC machined aluminum construction Set screw equipped to avoid losing drive pins Replaces stock plastic wheel hexes on the SCT410 Also fits all 12mm short course wheels Compatible with the ekno RC M6 driveshafts for the Traxxas 2WD Slash Compatible with Team Associated SC10 4×4

it also takes a beating in impacts

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