This Schumacher Racing Products factory replacement spool axle assembly is designed for the Eclipse 6 1:12 pan car. It combines a carbon fiber axle shaft with a metal spool hub, delivering the rigid, differential-free power transfer typical of 1:12 competitive racing. Install this assembly when your original axle or spool shows wear that affects straight-line performance or rear wheel fitment. Features: Carbon fiber axle shaft for lightweight rigidity Metal spool hub with sprocket mounting flange Spool design for direct, differential-free drive Purpose-built for the Schumacher Eclipse 6 platform 7/7/26 cs