[thechat] Third Wheel

[Tamara Abbey]

My husband wants what I'm going to call a 3rd wheel for his bike so the 
4-year-old can pedal along behind him at the parks and forest preserves 
around here.

I am reasonably certain these things are not called 3rd wheels -- but it 
hooks to the bike and has pedals, kind of like the bicycle-built-for-two 
only the rear end is lower for short legs. I've seen tons of carts that do 
this, but I don't want those (cool idea for really little ones though and 
they're even at Kmart).

Any idea what these are? Where I could find them? He's hinting for fathers 
day already.

Thanks!
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