Because the tires come mounted and glued from the factory

Steering bellcrank set

The connecting rod links piston to crankshaft

Carbon composite front suspension arm

Their lower A-arm has better ground clearance than stock A-arms and has a cross section based off of their proven 1:5 scale HPI Baja A-arms so you know they're tough

Team Associated 92149 Center Differential Spur Gears 72T/48P 78T/48P RC10B74 Sparko Parts Because the tires come mountedTeam Associated 92149 Center Differential Spur Gears 72T 48P 78T 48P RC10B74 #92149 contents: qty 1 Center Gear Diff Spur Gear, 72T 48P qty 1 Center Gear Diff Spur Gear, 78T 48P