Rear Sprocket - 520 - 45 Tooth - 125mm Center Hole - Apollo Thunder 250 Dirt Bike 609840 Ignition coil description:

Ignition coil description:

Used with:

Housing details:

Includes valve springs

Fits our part  Zn6 1731-MC389-03 (shown in pictures)

Rear Sprocket - 520 - 45 Tooth - 125mm Center Hole - Apollo Thunder 250 Dirt Bike 609840 Ignition coil description:Rear Sprocket 520 45T Apollo Thunder 250 Dirt Bike This rear sprocket is used on the Apollo Thunder 250. This sprocket has 45T and is compatible with the 520 chain ONLY. Sprocket details: #520 chain sprocket 45 teeth 125mm (4. 92 in) center hole 8. 5mm (0. 34 in) bolt holes Distance between bolt holes: 75mm (2. 95 in) center to center side by side Distance between bolt holes: 150mm (5. 9 in) center to center across Outside diameter: 233mm (9. 2 in)