My Canyon came with Reynolds Strike wheels and after reading the issues I was concerned how I would deal with a flat on the side of the road - several people said you're screwed and will need to find a car ride home. Luckily for me me first flat happened on a ride with an expert wheelbuilder who showed me how to do it and we were rolling again in 5 minutes. Since then I've had flats, worn tires, etc and so worked with the wheels a lot and it's really not that hard once you know how to do it. I've been riding Conti GP4000.

Key is to push the bead away from the rim towards the center but you need to do that on both sides of the wheel (drive and non-drive). Both need to be unseated in order to create enough slack. The unseating is easy, with your thumbs push the tire off the rim towards the center and go around in little steps until one side is done; then repeat on the other side. Then the tire will sit loose and you can pull one side over the rim to insert a tube. You can easily insert a tube but again when doing so push the tire back towards the center of the rim so the bead won't seat. When you're trying to mount the tire, start by pushing as much slack as you can towards the end point (opposite end of where you're start mounting the tire) and repeat this a few times as you go around it. You should have just enough slack to mount the tire at the end without needing tire levers.