Robert, I have no appreciable machining skills/knowledge, but we have installed modified trees on three motorcycles, including a 5° on a 2002 XL883R Sportster, with excellent results. As I recall, the resulting trail on the Sportster was was ±1½-2 inches.
Lee
MB5+TW200+CRF250L+GTV300+INT650
XL883R w/Texas Ranger Sidecar
Zuma 50F + Burgman w/Texas Sidecar<Mrs. SwampFox
Maybe I am especially weak, but I found the steering effort on the Royal Enfield 350 in the sidecar class to be a lot more than comfortable. Same with my '79 Sportster. I have 5 deg offset trees ordered, hoping for the kind of results as SwampFox.
Just saw this post so apologize for being late. I’m not comprehending how it’s possible to simply re-bore stock trees at a new angle. Maybe I’m not understanding what Robert is saying? IDK.
I have a 2011 Roadglide Ultra with a Motorvation Formula II sidecar that was mounted by the Motorvation Engineering Company before the business went under. It steered heavier than I wanted, so I bought a set of raked triple trees from this company:
http://www.cutnshootcustoms.com/rake-kits-1.html
Great communication, free shipping, they cover sales tax!
It made so much difference on my bike that my neighbor who has a 2014 Ultra Classic Limited with a Motorvation Roadster sidecar asked me to install a set on his bike after driving my rig. Both installs were not difficult if you are a mechanically minded person.
