I'm running out of ideas. This is the third way I've come up with to carry our bikes.


It involves taking the wheels and handlebars off and stacking them in foam.
The first way was just on a fork mounted rack on top.

But one of the bikes ended up with a broken fork, and the dust got into the gears making them unusable. Not very good for the bikes especially when we upgraded to more expensive ones(my MTB is close to $3000 now).
So we came up with another way. Sitting on their wheels and frame mounted clamp, enclosed in a poly canvas bag.

That also didn't work out as the bag caught the air and acted as a parachute. Ended up having to rope it up. It also didn't keep out the dust or rain and the flapping of the bag wore paint off as did the frame mount.
So we are on to the box that I built. Although it is very light, it looks big and ugly! I really don't like it. I just hope that it does the job.
Any other ideas that people have used that have worked well? Bear in mind that we do a lot of off bitumen travelling on some quite rough roads. Dust and vibration is always a problem.