M-jet Supersprint trailer

🛠 RC Boat Trailer for MN99S & M-Jet Supersprint

This is a small trailer I designed for my M-Jet Supersprint boat, to tow behind my MN99S Land Rover.

It should work with any RC car of similar scale, but you may need to adapt the hitch system depending on your model.

This is my first version — not perfect, but fully functional and fun to use! 🚙🛶

🔧 Files & Assembly

• All STEP files are included if you want to modify or improve the design.
• Assembled with 2.6×12 mm and 3×16 mm screws from this kit https://fr.aliexpress.com/item/1005002853127209.html?spm=a2g0o.order_list.order_list_main.131.2fce5e5bJ7dzfS&gatewayAdapt=glo2fra.

• The hubs are compatible with MN99S stock wheels, (the wheels can be purchased separately on Aliexpress).

  (I didn’t want to wait for wheels to arrive, so I designed my own and printed the tires in TPU — they work great!)

• The trailer tongue fits a 3 mm ball link.

🚧 Roadmap / Next Version

I may create a second version with:

• A central axle between the wheels
• Leaf-spring suspension

⚠️ Note

The boat can slide a bit while driving — I will add a locking system in a future update.

Have fun and enjoy!
Feel free to remix and share improvements 😊