Broken Frame - Gio Hummer

[TurboT]

So Gang,

What causes frame breakage in this spot? Been welded once already, probably not well, but it broke there on it's own before the weld.

Keep in mind, this is a 40lbs 5 year old's quad..and it is about 2-3months old.

[Weldangrind]

Without seeing more of the machine, I'm not sure what's causing the breakage. I can tell you that I'd stick a slug inside the frame before welding it up to add strength.

[TurboT]

Thanks..

I will pass that suggestion on for the next buzz job.

Must be something that would cause this.. I don't think it was even an existing weld spot, but not sure on that..

[Weldangrind]

That plate that is welded just above the break is the mount for the swingarm. Since that plate sort of acts as a gusset, I'm not surprised that the break happened just below it.

I would look on the underside of the quad frame for witness marks that indicate an impact with a large rock. Since the shock is probably too stiff for a 40 pounder to compress, the frame took the impact. Kids tend to repeat the same riding pattern that hey're comfortable with, so maybe this isn't the first encounter with said rock.

[TurboT]

Originally Posted by Weldangrind

That plate that is welded just above the break is the mount for the swingarm. Since that plate sort of acts as a gusset, I'm not surprised that the break happened just below it.

I would look on the underside of the quad frame for witness marks that indicate an impact with a large rock. Since the shock is probably too stiff for a 40 pounder to compress, the frame took the impact. Kids tend to repeat the same riding pattern that hey're comfortable with, so maybe this isn't the first encounter with said rock.

Very interesting deduction.

There is a a lot of dirt filling going on there and some big rocks around so that is a highly likely scenario.. and this little guy spools this thing up quite a bit. He's quite competent on it for his age.