The Mod Easy sidecar does look very light, and dog sized, but I don't think I'd want one on motorcycle.
My first sidecar was a Velorex which I put on a SR500. It was full sized but had a light fiberglass body. It was difficult to keep on the ground in right hand turns. That became a plus once I got used to it. I took every right hander "flying the car". If fact, once I had it in the air I could keep it up as long as I wanted. I could even make left hand turns leaned over far enough to drag the foot peg.
On one ride to breakfast, I made a right turn into the parking lot, and turned left into the parking space right in front of the door with it still up in the air. And then dropped it back on it's wheel when I stopped. When I walked into the cafe, the cook asked me, "Did I just see what I saw".
Great fun. But the point is a very light sidecar is hard to keep on the ground, unless it has some weight in it. And I imagine one with a narrower track would lack the outrigger effect that gave it a sense of balance. It might work at
My first time driving a sidecar rig, I borrowed one from a friend of a friend, who wanted to sell the sidecar, but keep the bike. We were at work. One of my coworkers hopped in the chair and we took it to lunch. I sort of forgot about the extra width turning it around at the restaurant, and hit a car bumper with the sidecar. Fortunately, the business next door was a body shop, and the car was there to get an estimate.
Returning the rig to the owner, I told him, well I guess I'm buying it. That was how I got the Velorex. I had it painted Luftwaffe desert camo while it was being repaired.
bicycling speeds, but just looking at the Mod Easy left me feeling uneasy.
When I etired
My later sidecars, including a Steib LS200, all had steel bodies. Not suitable for acrobatics, but more stable, and easier to ride... sanely.