| Number | Name | Brand | Fit |
|---|
| E0233 | Lightened metal Spur Gear 44T | Mugen Seiki | direct · Also listed by doc/mugen/mbx-6-part-list |
| E0234 | SPUR GEAR 46T | Mugen Seiki | direct · Also listed by doc/mugen/mbx-6-part-list |
| E0235 | Lightened metal Spur Gear 48T | Mugen Seiki | direct · Also listed by doc/mugen/mbx-6-part-list |