The carriers are about the only thing that doesn't break out there and they need to deploy the bicycles quickly to catch the right conditions.
I was directed back to this thread by a recent customer with a well equipped FJ Cruiser who we assisted a little while ago after they had a bit of bad luck with another brand of bicycle carrier.
In short, when driving in off-highway conditions you sometimes need a bit of momentum to get up and over obstacles - there's no choice and it's part and parcel of 4WDing - as are holes, bumps and depressions to get through on the way up. In those circumstances, the rear of the car can come down hard and smack into the track surface. In this customer's case the bicycle carrier had a foot of thin wall steel tubing hanging straight out of the back of the towbar and as climbing in the wheel ruts, the rear of the car came down hard on it's suspension and the tube smashed into the centre of the track. The carrier folded up and the handlebar of the forward mounted bicycle smashed through the rear window of his FJ. They limped back to Birdsville to go through quite a saga of repairs, replacements and trying to deal with insurance. I'm sure that we'll hear more when they return from the trip.
To add insult to injury, that was the second carrier with exactly the same issue during the last school holidays.
For us, we don't like doing business on someone else's misfortune and it just breaks my heart. Moreover it adds chaos to our ordered business because to move heaven and earth to have the equipment out quickly and efficiently means that other stuff must slide - especially at one of the busiest times of the year for us.
On the up side, we have more terrific and like minded customers who are now driving safe, relaxed and without hassle - which is what 4WD travel with bikes on board should be.