Opinions/Beta on Kids Trail-a-Bikes?

[criscam]

Anyone riding singletrack with their kid on a trail-a-bike? A little early for my 2 yr old but every now and then i'll see someone on the local trail haulihng their kid around and wonder if i would/should go that route when the time comes. Seems like you'd want a fairly smooth/flat trail? Do the kids get any enjoyment/skills out of it or is it just something that dad can use to maximize his biking?
Also noticed the 2 versions: the full seat w/ harness and the more standard bike seat w handlebars. Pros/cons to each?
Surprisingly haven't found a whole lot of info online.

[Poop~Ghost]

I got one off C-List for $75 and it's the standard bike seat w/ bars for my 4 year old daughter. She literally rode it a week and then started riding her own bike... guess all that strider riding finally paid off.

Buffed out trail riding would be fine - obviously any bumps in the road they're going to feel. We're keeping it for now because when we do longer rides (>2-3 miles) she does much better for now. I did drag her out for a 5 mile ride on her pretty princess bike and she lost the enjoyment factor by about mile 3.

There seems to be a steady stream of $50-75 options on Clist.

[Shredhead]

I had two boys and I wore out a Burly trailer. Then a standard trail a bike with a kids seat on my bike and finally a tandem, Adams trail a bike. Buffed single track isn't a problem, rocky bumpy stuff can be.

Quality varies a lot by manufacturers. The Adam's are pretty nice.

[cooltsi]

Ditto, what these guys said. Just sold mine for $50 on CL in pretty minty condition. If it gets rocky or pitched the pivots and coupling to the seatpost can get a bit of play. Tears up seatpost so I wouldn't suggest a carbon post for the clamp. Taught my two youngest to be more comfortable with speed and balance.

[criscam]

Bumping this as I think I might pull the trigger on one soon if I can find a used one. Anyone one ut/id/co area have one for sale?