OK, nobody has any ideas of cantilevered rear wheel bikes other than the Goldwing and the BMW?
If no one knows about the cantilevered rear wheels, maybe someone can off a 90 degree gearbox that would withstand the torque of the Harley motor with the load of drive sprocket to the rear wheel.
It does not have to be a reducer gearbox as I can play with my ratios with the sprockets.
Any ideas?
This is the new Morgan Three Wheeler.
![](http://pic80.picturetrail.com/VOL846/863774/24555049/409486371.jpg)
This is a '30s Morgan Three Wheeler. I plan on making mine a bit more like this with doors rather and climbing into it. A Harley "B" motor will be used. An '06 or older to get the 4-bolt primary flange rather than the new '07 and later bolt pattern. I can buy the "bell housing" through a Morgan dealer and then make up my own compensator to mate the two together.
![](http://pic80.picturetrail.com/VOL846/863774/24555049/409480457.jpg)
Here is the S&S 2L with the Miata 5 speed mated to it.
![](http://pic80.picturetrail.com/VOL846/863774/24555049/409480468.jpg)
Same but different view.
![](http://pic80.picturetrail.com/VOL846/863774/24555049/409480464.jpg)
Inside driveshaft connected from the trans to their 90 degree gearbox.
![](http://pic80.picturetrail.com/VOL846/863774/24555049/409480462.jpg)
Rear view of their 90 degree gearbox mounted with their drive sprocket installed.
![](http://pic80.picturetrail.com/VOL846/863774/24555049/409480453.jpg)
Front view of their gearbox mounted.
![](http://pic80.picturetrail.com/VOL846/863774/24555049/409480471.jpg)
So if don't do the Goldwing GL1800 complete swing arm assembly, I'll be doing my own swing arm and have to have a 90 degree gearbox for my drive.
Like I said, the Goldwing final drive is stout enough on the output side because it supports the weight of the bike, no worries mounting a sprocket to that.
Here's a picture of just the final drive on the Goldwing. It has a nice 4-bolt mount on the front that bolts to the swing arm housing, so it should be more than strong enough to mount in the chassis. It has a 85mm 5-bolt wheel pattern, so making a hub and sprocket mount would not be a big deal. I can draw up in Cad and then send to our machine shop to have it made up. There's no oil in the front shaft area, and I do have a drive shaft that slides right onto it that I can modify down to a mounting flange with bearing support. This would give me something to bolt my main driveshaft to.
![](http://pic80.picturetrail.com/VOL846/863774/24665505/411506670.jpg)
If anyone has any ideas or suggestions, please feel free to interject at this point...
![Smiley :)](http://www.cvoharley.com/smf/Smileys/CVO/smiley.gif)