I just found this press release on 23mag.com:

"Press release : October 21, 1999. SE Racing Trademarks Change Hands. After 23 years, the SE Racing, trademarks are no longer controlled by it's founders. As a result the current U.S. manufacturing operation has closed its doors, shut down, history, finished, adios muchachos, GONE!!! Recently, Mike Devitt, who has run the company for many years, an outside investor, and SE's founder, Scot Breithaupt made a bid to buy out the foreign partners. A deal could not be struck, so they pulled the plug as of October 15th, 1999. The entire staff will leave the company to create a new brand. All the SE machinery and fixtures will be used for the new venture. Devitt says, "Our crew has been together for over 20 years, Sal Correa, shop foreman and his welding wizards, the sales guys, and I are anxious to get the new brand rolling. Our new partner, and Scot, and myself will start the new venture immediately. We will attack the BMX, jumping-freestyle and MTB markets with the same top quality innovations and promotions that made SE a powerhouse in the 70s and 80s. Diehard SE fanatics can still count on us, they will be blown away by the new bikes. A new name, a new company, a new challenge!"

How did the story run out? Can somebody give a history lesson?

The company was Alliant Bicycles, they made some great frames for a few years. My old shop team was sponsored by them, good guys Great frames, Gary Turner was on board as well.

Here's how the story run's out! After the fall of Alliant. Mike went on to other thing as he was the Business part of SE in the end. Scot went on to some other small ventures and was side tracked for a while (You can search this site for follow up on Scot He is a member here). SE went out of business for a few years and then was bought buy Fuji. They started to product some good bikes under the SE brand(They Still Had The Full Line of Fuji's). They then made Todd Lyons head of SE. Well I guess that was a ok thing to do because he is one of us! A Racer, A Rider and all around Good Guy! He slowly started making SE a leader on the track again and from there started to listen to us old guy's and what we wanted. At that point his retro line started. It's now been a few years and business is booming on the track on the streets and with Todd working so hard even on TV. One of the biggest deals of late has been the DC shoe's teaming up with SE. I am sure Todd has bigger and better things around the corner. And with the help of the people Todd has to get information from I am sure we will see more great things from SE for years to come. Well That's My Take On How It Runs Out! If anybody has anything to add please do. I just tried to sum up , I would like to hear some of what Todd and Scot have to add or some of the guy's that worked at SE.

Thanks for the info.
I asked cause there´s a gap within my BMX knowledge between about 98 and 03 wen i retired due to studies and stuff.
I already knew all the other business records from SE back in the 80s till Todd doing a great job nowadays.
But it was new to me that Mike Devitt and Gary Turner went on with Alliant. Those bikes i saw in the Museum looked awesome.

There´s just one little thing i´d like to know.
What exactly happened between 1999 when (according to the press release) SE was shut down and 2002 when Fuji came up.
The BMX Museum shows some bikes from exactly that period. But they could be wrong dated. Was it that SE completely went out for that 2 or 3 year period or did they still produce in a small amounts?