Repairing a bottle cage

[Jameshow]

My son has bust a bottle cage nut and is spinning in the frame?

Anyone found a way of dealing with this?

I was thinking of punching it out and replacing with a bigger rivnut as he's mounting a electric bike battery?

 

[numbnuts]

Have a look on youtube "bottle cage nut"

 

[Mr Celine]

Either buy a rivnut tool or make one like this.

Using this to tighten the existing rivnut will either work or break the rivnut. If it breaks have fun retrieving it from inside the frame.
New ones are cheap on the Bay of E.

Screw the nut half way down the bolt. Put the end of the bolt through the hole in the steel strip. Screw the bolt a few turns into the rivnut. Use the steel strip to push down hard on the top of the rivnut to stop it turning while you screw the nut down the bolt with a spanner, which pulls the back of the rivnut against the inside of the frame.

 

[Jameshow]

Either buy a rivnut tool or make one like this.


View attachment 752448

Using this to tighten the existing rivnut will either work or break the rivnut. If it breaks have fun retrieving it from inside the frame.
New ones are cheap on the Bay of E.

Screw the nut half way down the bolt. Put the end of the bolt through the hole in the steel strip. Screw the bolt a few turns into the rivnut. Use the steel strip to push down hard on the top of the rivnut to stop it turning while you screw the nut down the bolt with a spanner, which pulls the back of the rivnut against the inside of the frame.

Problem is there a seized bolt in the rivnut?!

Perhaps drill it out and replace with a bigger rivnut as it's for a electric bike.
Worst / best case is to weld into frame a new bracket for the battery....