For sale is a really nice, rare and desirable SE Racing JU6 frame with SE innovations forks. From what I could find online it seems like there were anywhere from 10 - 100 of these frames made. If you are reading this ad you probably know the details about these highly sought after frames as the majority of the information I found was older threads from the Museum. These frames were made in 1978 and pre-dated the PK Ripper. The forks at that time would have been made for SE I believe by either Tange or Cycle Pro. This was before SE was making their own forks and before the forks were stamped "SE".
I do not see any repairs or cracks and all of the welds look great. There is a small dent on the side of the bottom oval tube as shown in one of the pictures. There are some other smaller little dents but the one in the picture is by far and away the most significant. It is maybe a quarter inch long. Any other dents are much smaller and you would have to look for them to notice them. (This is an aluminum frame so sometimes they will get a dent.) There is also a very small pinhole in the top side of the small round tube just behind the back right side of the matchbox. It is small enough that it does not show up in the pictures.
I do not believe the paint on the frame to be original but at the same time there are no signs of any older paint below and there is no paint inside the bottom bracket or the head tube. Those are still raw aluminum. There are some little marks here and there on the paint but it just seems to me that it is in too good of condition to be original and I am not sure if the color is an original SE color or not. It is not the really light blue color that you see often on SE bikes. It is a little darker. My guess is that someone stripped all of the original paint at some point and repainted the frame. The dropouts are very clean with only light marks. The seat tube mast looks great. The forks look to be in good condition but the brown paint is really thick for some reason and at the fork dropouts and ends of the fork tubes you can see a little bit of dark blue paint underneath.
The headset is in good condition but I don't know if it is original to the frame or not and I don't know what brand it is. If I remember correctly it does look similar to a headset I saw in one of the pictures of a JU6 that I found online. The bearing cups are also in good condition with a little bit of discoloration on each one in a small area. I think they can be removed quite easily from the frame as they do not look like they are corroded onto the bottom bracket shell or anything like that. I just thought I would leave them in place as they were there when I bought the frame and fork. A nice quality set of reproduction JU6 decals are included. It is a complete set of decals.
I purchased this JU6 a while back along with some other bikes from a high end collector who has been collecting a wide variety of really nice BMX bikes for a long time. He has a large BMX collection with several of the bikes being pretty rare and collectible.
Previously on Ebay I saw a seller asking $4,700 for a first year (1979) PK Ripper that is not one of the 600 roundtop tube PK Rippers. It has the standard oval top tube. The frame and fork are super nice but they are not nearly as rare as a JU6.