I did not realize that you had a build thread on this new rig. First, I want to say that you did a marvelous job! As I mentioned in the chit-chat thread, I was never wild about this style Velorex. But now that I've decided to pass on the R65 rig I found on CL, I'm going to take a hard look at perhaps putting one of these on either another BMW or my '76 T140V.
I've been doing a lot of research and reading on rigs. So, I want to be clear that I'm a total newbie to these and do not want to portray myself or have my comments be mistake as the voice of experience.
Had a long discussion with Perry Bushong. He said that the tele folks work better than leading link or Earles forks. He makes modified trees to reduce the trail and installs a steering damper. There is another member on another site with an R100 rig built by Perry that uses his trees and he said the rig is a joy to drive.
Another possibility for me is building my own sidecar. So, I'm always looking for chassis photos/info. Can I ask you to post a few more shots of the bare chassis?
Did you make a subframe for this bike? Perry said it is not required. He does something very similar to what you did with a plate mounted to the footpeg. He also uses the top shock mount for the lean adjustment and said there is no real load there so it is fine. The United Sidecar Asso manual and Snowbum's site both say not to use the subframe for any mounting points.
If you have not yet found it, the USA has a website with lots of info and they post their manuals there for free downloading. Here is a link to the manual page. http://www.sidecar.com/links3.asp
Would love to see some details on how you attached the chair to the bike and any issues/tricks you might have uncovered.
I need to talk to Perry again to find out what a set of his trees cost. I believe you have to give him a set of trees to modify. So, unless you want to relegate the bike to permanent tug status, you'll need a spare set of trees to modify. I know Perry has a patent on his tree mod design. He based it on the EML forks, which are also tele forks.
What I'd like to find is a chopper parts outfit that makes raked trees on CNC machines and hopefully at a significantly reduced price. But I'm doubtful I'll find that. I figure a set of trees is going to cost $1000 when you are done. A set of United leading link forks is in that same price range if I remember right.
So, lets have some more details, Adrian. You are leading others into the abyss so you might as well make it a fun ride.