Double wheelie bar for MJX 14210 / H14BM

Wide version it's to use with original wheel size but I couldn't do a version that doesn't break with PLA, PETG or PA.

Narrow version it's using smaller wheels to stress less the pin and works much better for me.

Best result with pin I got it with PA/Nylon6, PLA breaks too easy and TPU flex to much and spited pin pasted with super glue.

I printed wheels with a flexible PLA or TPU. PLA doesn't work. Use 6 perimeters and add an extra wheel in the middle to avoid the pin flex to much.

This use original the wheel but more wider for extra stability.