MJX 14210 drag bar (long wheelie bar)

I've had my 14210 for a few weeks now and still face the same problem (especially on 3s) of the car doing a backflip whenever i try to drag race it as fast as possible.

These 3 drag race wheelie bars either clip onto the normal MJX wheelie bar (with the wheel still on) or replace the wheel for a sturdier mount.

Plate 1 is my favorite, it does what i want it to do and is seemingly safe.

plate 2 is at a deeper angle, causing an effect similar to a spring preload. this gives a bit less speed but more steering at high speed (for good and bad).

plate 3 is a stiff design with a wheel (my original plan), it works but is far more sensitive and almost requires adjustment for effective use.

Plate 4 is just a wheel for the wheelie bar, my original wheel had worn spots where plate 1 and 2 would slip off without a crash.


NOTES:

The clip-ons are completely safe as far as i can tell but V2 of the stiff screw-in cracked a diff housing in my testing. the bottom hook in V4 (uploaded here) is intentionally weak to hopefully avoid any damage to molded parts.

the 30 mm wheel on the stiff version might be too large depending on your suspension and diff evenness, causing it to veer in one direction (32mm wheel veers right for me due to front diff being uneven).

The design is saved on an A1 mini preset, it seems to fit but i do not have that printer to verify (parts printed on X1C).