18 inch rear wheel on an XS1100

[DEEBS11]

[DEEBS11]

I am also seeing a possibility that the 81 XS and XJ1100 have a little relief cut on that spot for a wider tire. Is that possible?

[DEEBS11]

However, this is the spot that would be the most problem. The reduced diameter of the wheel will bring the widest part of the tire right here. Wonder if I can cut and weld a small relief in that area without hitting the rotating shaft.

[DEEBS11]

Does someone have the inside width of an XS11 swingarm where the top of the tire resides?

[DEEBS11]

[DEEBS11]

Boy, the Excelsior tire is pretty tight. I think the 6.5 inches might have more width at the sidewall.

[DEEBS11]

Looks like the tread is 6.5 inches wide. 25.4 inches tall. I wonder if that width will fit inside the swing arm.

Edit: My present tire is 5.6" at it's widest point on the sidewall. The 6.5" tread tire 9above) will add another inch or two sidewall which would be close to 9". A 165/80-15 is too wide.

[DEEBS11]

I'm looking into running this tire.

[DEEBS11]

Found it! Leave it to Step Toe.

[DEEBS11]

I found this on the internet years ago from Australia if I remember correctly.

[DEEBS11]

[DEEBS11]

My question is about the stock cush drive. The rubber inserts. Has anyone ever removed and replaced these? Are they vulcanized? They would need to be removed (ideally) in order to take the heat that welding will generate.

[DEEBS11]

Well, my project has kind of evolved as projects do. I am looking into having a custom 15" to fit a car tire wheel fabricated using the stock hub as shown with this BMW wheel.

[Mathh]

I have forgotten most of my experience with 750/850 wheels but I do remember that I had to check if the offset of both triple and 1100 wheels were the same. The triple wheel is more narrow so it would make sense that the offset is different on both wheels.

[bikerphil]

Another thing to think about is with the 850 drive mod, you are only using 2/3 of the driveshaft splines at the U joint due to the 16mm spacer you need. Might not be the best idea with the added weight of the rig. Who knows?

I think 3phase had a custom yoke welded up so the full depth of the drive splines could be used.