Unknown maker frame please I.D. it.

[us56456712]

There are different size cups, some inexpensive bikes have smaller ones. If standard cups are too big for the top try a Schwinn type, this usually fits the top. My rollfast uses standard cups top and bottom, but there is a lot of variations with the same brands.

 

[horsefarmer]

Thanks, I will dig around. Do you know if any of the disposable WM bikes use the smaller cups/bearings?