Restoring an old kids bike

[M_Chavez]

Hi All,

I hope some of you might help me with a couple questions about a fixed gear bike.
I am restoring an old fixie with my kids - it's a kids version (16" and 18" wheels) of OCC Schwinn stingray, made by Ammaco.

1) What tool do I need to remove the rear sprocket? Seems to be a rather unusual two-prong type?

2) What's the name of this type of brakes? I'll try to find a replacement, as the original is in pretty poor shape. Is this a hub brake?
The original is just about serviceable, but I'd rather install a new unit (assuming it can be installed).

Any help would be appreciated.

Thank you very much.

 

[M_Chavez]

Re:

Well, the brake appears to be a band brake. The rubber band is riveted into the cover body, so I decided to go for a full replacement - let's see if it fits when it arrives.

Still no idea about removing the sprocket - if I understand this design correctly, I need to unscrew the ring with two holes first. Can't find a tool that would do this, so at this rate I might just buy some aluminium bar stock, drill a couple holes, put two rods through them and try to unscrew the cover.

 

[Splatter Paint]

Re:

I think the two pin holes are for the assembly of the freewheel mechanism. Are there any fittings inside it? have you removed the axle to take a look?

SP

 

[M_Chavez]

Re:

Thanks - I thought it was a fixie, but you're right - that's a freewheel. Pulled the dickens out of it and the freewheel started turning (reluctantly).

The freewheel is threaded onto the hub, but there's a tiny notch that won't allow enough leverage to unscrew the seized freewheel - migth have to cut it off.

 

[M_Chavez]

Re:

Thanks for getting me on the right track - I've cut a few notches in the freehub cover, knocked the lid off, took the sprocket off and then managed to get some leverage on the remainder of the freehub. Job done.