I own a BikeE AT and a Greenspeed GT-3. Granddaughter, 5, is coming for a visit, and is a demon on wheels on her little wedgie (standard) bike with training wheels.

I'd like to take her on a group ride that's coming up with a rented, borrowed, or bought Trail-a-Bike or something similar, but all I've found rely on a wedgie's seatpost.

I am pretty sure I've read of people using some type of bike like this with an axle mount that worked for the BikeE. Anyone have an answer?

Thanks in advance!