Originally Posted by
adrien
I observed that for years. Issue is that many models attach to the seat post (not the best idea) and have a universal joint. Not so the Piccolo mentioned earlier. It's got one axis (horizontal) and bolts into a proprietary rack. It stays vertical and stable. My daughter is now 6, and last year graduated from a trailer to a Piccolo. She loves is, and we go out a lot.
I've never seen a Piccolo in the flesh but have looked at them. They are a much better product...and much more expensive...then most Alley-Cat knockoffs. If I had it to do again, I still stick with a tandem. Especially if I were wanting to do faster longer rides. I don't know how stable a trailer bike would be on a screaming fast descent but I know how stable tandems are...up to 55 mph with a 6 year old squealing with delight