Cut a form to bend the wood on based on the radius or profile of the tire on your bike. I used a leftover piece of 2x12 that was laying around the workshop. Trace the profile of the tire on the scrap wood and then cut with a hand jig saw. This form should be long enough to handle the full length of the fender. While the wood is still damp from the soaking hot towel, wrap the fender around the form and clamp to hold in place.