HobbydexMugen Seiki · Spur gears
| Part | Name | Releases |
|---|---|---|
| E0233 | Lightened metal Spur Gear 44T | |
| E0235 | Lightened metal Spur Gear 48T | |
| E0255 | Plastic Spur Gear 44T | |
| E0256 | Plastic Spur Gear 46T | |
| E2206 | Metal Spur Gear 46T MBX7 | |
| H0281 | 48T Spur Gear, Speed 1 MRX-4 | |
| H0283 | 50T Spur Gear, Speed 1 MRX-4 | |
| H0284-B | 45T Spur Gear, Speed 2 MRX6 |