What is this black box on the seat tube?

[Salty seadog]

I've seen them around mostly on older bikes. Is it a lock fitting, I have never seen a cable or anything. A tool kit?

Over to you....

 

[southcoast]

Don’t know what that is, but the chain needs some oil.

 

[Nibor]

I have seen things like that for carrying the U-lock also in the picture

 

[rugby bloke]

When I had a child seat on my bike the mounting bracket looked very similar.

 

[Salty seadog]

Don’t know what that is, but the chain needs some oil.

It looks a wee bit crunchy. 501 frame on that wreck though.

 

[Heltor Chasca]

Hamax child seat bracket. It’s where the metal prong/chassis of the seat engages/disengages.

 

[Yellow Saddle]

Plight Recorder for that chain.

 

[Fab Foodie]

Hamax child seat bracket. It’s where the metal prong/chassis of the seat engages/disengages.

Correct!!

 

[midlife]

Brown bike behind looks like a Raleigh Esquire.....

 

[Ming the Merciless]

It's a flux capacitor but designed for a bike and kicks in at 33mph.

 

[Salty seadog]

It's a flux capacitor but designed for a bike and kicks in at 33mph.

Ah ha, half of 88, I like it.

 

[Globalti]

Yes it's an engine.

Or Hamax child seat mount....

 

[I like Skol]

Another Vote for a Hamax mount. Had one myself when the kids were considerably smaller....

View attachment 223132

 

[southcoast]

It looks a wee bit crunchy. 501 frame on that wreck though.

Yes potentially a nice riding frame.

 

[Fab Foodie]

Another Vote for a Hamax mount. Had one myself when the kids were considerably smaller....

View attachment 223132

Did you also end-up hacking the bracket of as well?