This has been our first cycling holiday where we searched for sponsors. Two sponsors were very friendly by helping us with equipement that made this great cycling adventure through Australia possible: Schwalbe and ExtraWheel.
Schwalbe

The expedition required a lot of bicycle tires: tires for our bicycles, tires for the trailers and two spare tires. This makes a total of 8 bicycle tires. We've been cycling with
Schwalbe bicycle tires on many of our cycling trips and always liked these tires.
Schwalbe agreed to support us by supplying the bicycle tires. Thank you
Schwalbe for your support!
We had no flat tires during our Australian adventure!
ExtraWheel

For carrying plenty of water and the supplies for the long trip we each used a trailer.
This to relieve the bicycles a little bit and spread the load on a larger surface.
The
ExtraWheel trailer is an unique trailer: It rolls on a single 26 inch wheel, similar to the ones on the bicycles.
That means one length of spokes, same tires and other parts, not mentioning traction advantages of large 26 inch wheel compared to tiny 16 inch of most other trailers.
ExtraWheel is able to handle a load of up to 30 kg and despite steel construction weights less than 5 kg, what makes it the lightest single wheel trailer on the market.