Drew.....it is a Cozy sidecar....I think ....the tub or boat was bought by a buddy of mine and a lot of beer was part of the transaction. When he sold it to me ........it was a Cozy, then he decided it was a Steib.....then went back to Cozy. The cradle or frame holding it was shop made. The fender and wheel of the sidecar came off a wrecked R65. The bumper in front is off a Steib....the side fender I bought on ebay came off a Cozy, as did the steering damper. The windshield came off a old Honda. The luggage rack in back is off a Velorex. I ride a junk yard special or custom bike....take your pick. We tried the sidecar tucked closer to the cycle......looked better......but the ride wasn’t......Would love to see pictures of yours.
Justin, any of the post /2 cycles can easily be reinforced to take a sidecar. There are kits made to do just that. Mine has a heavy duty triple tree..makes the cycle two inches longer that a regular R65. The lower point of the sidecar attachment does not connect directly to the cycle frame but to a heavy duty aluminum block. This block in turn is attached to the frame in several places..... spreading out the stress. ....just precautions to be on the safe side. Three years and thousand of miles..........no problems..
I was talking with a guy at the Classic Rally here in Texas......he has a R75/5 with a Velorex sidecar. He had no frame or triple tree reinforcement. He has had the rig for some 12 years and a lot more miles than me. He has never had a problem. He ask if I had ever actually met anyone who had a frame failure. No..... I have not.......and I have seen a lot of post /2 cycles with sidecars, talked with their owners. He suggested given the thousands of BMW sidecar hacks out there......there really wasn’t a problem.
I saw his point......but think I recommend reinforcing. But I also think any airhead BMW can be adapted to safely carry a sidecar. I think you know Perry Bushong.....the Texas expert on sidecars.......who holds the patent for the triple tree I am using. He build a R65 sidecar rig....... similar to mine .....attaches the same way..........for his son in law.