Klein ...breakable. Thats the most stupid thing Ive ever heard. You confuse this with Easton E9 tubing my man! Kleins are far from being known for failure.
@fguki:
Sorry, unfortunately you are totally wrong:
Vintage Klein bikes breaking is not the most stupid thing at all.
Be informed, do your research, read = be knowledgeable!
If you're choosing to be ignorant or have half knowledge, then that's your choice, but do not pretend to know, if you clearly don't.
Why (for example) the boxed fork, with square head was discontinued after 1991....guess why? Because they broke very often. It was also the same reason why FUNK bikes changed to round heads in 1992.
Back to Kleins:
Other areas on the frames prone to breaking - were seat tube area near the top, on the rear, headset area and others.
Kleins 6061 T-6 tubing (used with Kleins until late 1993), which btw came from a large plane builder, was unfortunately not that strong and prone to break, especially with bikes from 1990 - 1993.
@fguki: Read on the subject, do your research, inform yourself, talk with many who have owned various Kleins who have really driven them offroad, not just put them on a wall or driven around the corner to impress their neighbors. You will then have to acknowledge that (unfortunately) all mentioned points are 100% correct.