Rear freewheel sprocket for heavy duty axle. For use with 4 Stroke bicycle engine kits - requires Freewheel Thread.
Available in 3 sizes: 44 Tooth, 48 Tooth, and 56 Tooth.
Not sure which sprocket...
Make your own heavy-duty rear wheel for your motorized bike. Each kit includes a chain drive sprocket in your choice of 3 sizes, freewheel sprocket mounting hub, drum brake, and heavy duty axle...
Standard OEM replacement 10 Tooth Engine Sprocket for use with BT80 Engine Kits. This 10 tooth drive sprocket mounts directly onto your motorized bicycle engine and is used to turn the rear drive...