Posted 11/21/2016 11:03 AM (#91478 - in reply to #91472) Subject: Re: Cosy cars
The Cozy sidecar is not intended for a bike as large as yours, if you have a bushing rather then a wheel bearing chances are you have a sidecar that was intended for a scooter not a large bike. Safety must come first! This does not sound like a safe thing to be doing.
Posted 11/21/2016 7:38 PM (#91481 - in reply to #91472) Subject: Re: Cosy cars
Location: Lakeville, Minnesota
In the past I installed a few Kozy (more on this in a moment) sidecars on Royal 'Enfield Motorcycles. At that time those I worked on had a Nylon or Delrin bushing instead of a wheel bearing. Those sidecars were intended for the RE and had bike specific mounts.
The Royal Enfield had a 20 HP single cylinder pushrod engine capable of running the bike 55 to 60 mph without the sidecar. The bike was much lighter than the Kawasaki you have. As you suspect the bushing should not be trusted at higher speeds and on a much heavier bike. I also suspect that the frame of the sidecar was engineered for the lighter duty ... if it was engineered at all.
That said. There have been some changes in the Kozy / Cozy as some corporate and manufacturing changes have occurred. Thus the change in the spelling of the name. What those changes might be I do not know.
Posted 11/22/2016 8:37 AM (#91483 - in reply to #91472) Subject: Re: Cosy cars
Thank y'all for the responses. FYI: I'm going to be using a 9 spoke alloy Harley FL ( front ) 300 X 16 wheel, for which I've had a new axle machined. Going to run a 100/90 Brigestone Battlax tire. Also have had about 45 lbs. of plate steel welded to the frame for ballast.
Suggestions / comments ?