Bicycle Mechanics - 2 questions

There are 2 questions here. Neither of which is very important except as a curiosity:

1st: has anybody ever heard of the TYLER bicycle. It was made in Poland. Looks exactly like the vintage Raleigh 3 speeds --but cheaper parts.

2nd: Why would anyone weld a fixed cup? This doesn't look like an original weld. My guess is that it might have had right hand threads and kept working itself loose.

BTW, this welded cup is on the TYLER.

Any other ideas?

I have a tyler three speed. European thread bottom bracket.
Lugged and brazed frame construction. I plan to donate it to the local Bike Co-op.

2nd: Why would anyone weld a fixed cup? This doesn't look like an original weld. My guess is that it might have had right hand threads and kept working itself loose.




Yeh, maybe they stripped the threads and that was the only way they had to keep it "fixed".
Just a guess, but I can see someone doing that in a pinch.

I don't know how Polish BBs are threaded. (We could get into some politically incorrect humor here... ) Austrian and Swedish bikes have always used English/ISO threading, and I believe Dutch bikes did, as well. As far as I know, only French and Italian bikes had the problem of the self-loosening RH-threaded fixed cup; everyone else did it right (left?).

Do you mean the cone? many of the tylers use a thompson bottom bracket, in which the driver side cone is part of the spindle, as well as often the right crankarm. otherwise, no clue.