Topic: Need to ID a swingarm

[Tim.]

Any thoughts on what this might be?  It apparantly will bolt straight into my XS650, a fact I've pretty much confirmed with a ruler and comparison to my other two swingarms.

It's pretty much identical in dimension to the Radian swingarm, which you can see in the pic of the three swingarms I have at the moment for my 650 (first on the left).  Choices...

[Tim.]

No, I picked it up as-is for $25.  Its entirely possible that its been modified in some way.

I was also curious about the welded seam in the middle of the pivot tube.  I can't imagine they cut a section out of it to narrow it vs. milling down each side, but can't understand why it would be made from two short sections of tube.

I'm going to keep it around for a possible future more modern take on an XS650 with inverted forks etc.

[754]

If you cut both sides you end up with very short bushings..

[DarkRider]

heh..sounds like a good plan for it there tintin

[Tim.]

If you cut both sides you end up with very short bushings..

Maybe I'm just tired from flying all over the place (just checked into my 2nd hotel in two cities in two days at 1AM and am flying back out tomorrow after meetings first thing).  The bushings wouldn't be impacted by shortening the ends of the tube, they'd just get pressed in after.  This actually has needle bearings regardless.

Now that I look at the photos, it actually looks like the entire swingarm was cut right down the middle, channeled and put back together.  The big square tube is also cut right down the middle.

So it appears the swingarm was narrowed and shock mounts added to all match up with the XS650 frame.  Lots of effort put into it.  Maybe someone on eBay would appreciate it a lot   It would seem a beefy swingarm like this is well above and beyond the rest of the chassis.

[DarkRider]

It would go well with a set of R6 forks like Funjimmy used on his CB. Perhaps an XS650 with R6 forks and that arm?

[754]

Some swingarm are only bored to size, the length of the bushing. So shotening the sides means suddenly you have less bushing leading to quicker wear, less support..
in short.. a low performance part.