Need some info on Profab

Slow Vet (Mike Bierman) used to work for them. I haven't seen him on the boards lately, but he would likely be a good source. Exfactorywrench also worked at Pro-Fab, I believe---and he is still on the board. Pro-Fab was waaaaaay ahead of its time. That's all I've got for ya.....

Didn't C&J Racing Frames build a lot of the Pro-Fab stuff? If you frame was actually modified by them, all of the welding will be meticulous and it will look professionally done in all respects. There were a lot of laydown kits available back then for do it yourselfers. They didn't always look so well! Very popular mod.

Hello, the bike and rider in the Profab picture are of myself and my 1st of 2 Profab bikes. The one you see in picture had a complete Profab frame. The configuation was fairly close to a stock frame up front. It had a very nice oval tube steel swingarm and the welds on that thing were the best I have ever seen on anything, The frame was about 23 lbs with the swingarm and shaved about 7-8 pounds off a stocker plus it was stiffer as well. The second bike had the same config frame except it has a steering stem made to take timken bearing as the bike I used to build it was a OW12 works bike I got from Canada in mid 1975. The works Yamahas at that time had a frame breakage problem and this OW12 was no exception but since I knew Pete Wilkens well I called him up and he built up a frame to take the factory parts. He also built all the factory works team frames for Weinhert, Karsmakers etc because of the breaking issue. I did not use the monosock setup as the works shock was much different than any of the stock shocks and no parts were available. The bike weighed 185lbs dry and was incredible...take a look at mxworksbike.com and look at the pictures etc on the OW13 bike Tom Kratzer had, my OW12 was it's sister and was originally ridden by Tom Kratzer on the Canadian Factory team...it was quite a bike unfortunately I sold it for next to nothing and it is long gone...but worth a fortune if I can find it.

Hey guys- While we are on this subject, I need to get in on this. Can anyone narrow down & identify the brand of frame. I can't find any markings. All I can see is the oval-tube swing arm is 1.5" longer than a stock TT500, has no chain adjustment marks and is running an Up-Tite tensioner.
Newmann has been helping find clues, also. Thanks!

This is the guy that had the Profab bike in the earlier pics. I know this is old but I wanted to talk about that swingarm on the TT500 in case you come back here. It does look like a Profab arm. The oval tubing and the way the lower shock mount is boxed in and designed inc. the hole drilled in the gusset looks Profab for sure...

pro fab was a good shop. very reasonable. I had my 74 red frame cz 400 done there. they moved the shocks foward on the top and bottom for like 95 dollars. even shot some red paint on their work.