That shouldn't be a problem. Mine goes about the same length and as I said works great. Maybe a little to good but that is the disc I think.
The sidecar will be the first thing out of the box for certain. I was very surprised that the rig was as solid as it is. Almost forgot the sidecar was there other than with my sense of balance I didn't fall over.
Looking forward to seeing yours going down the road. All we have to do is figure just what thickness of foam to put in the sidecar when we upholster it with the plush Royal Purple Velvet for Moosh. Button tufted of course with gold trim.