We are not taking the bikes on this trip.
The only 'suitable' places for them to ride them would be while in Alice Springs, Kulgera and Yulara, and then only around the caravan park, and it is the busiest time if year up there so I would imagine a fair bit of traffic.
Also depending on how they are stored, it is just more time getting them on and off everyday which could become a bit tedious.
With the amount of kids going, I think there will be too much going on for our two to even bother to ride them.