yrun** hmm TBH I didn't go to any serious mud just yet, but whatever I did most mud did stick to my Givi belly pan, and eventually fall off due to smooth aluminum, I was also thinking about some kind of rubber "mud flap" rather then extender, because of the very small clearance between the tire and fender. I think Suzuki screwed up on the front fender clearance, they designed the Strom capable of some ADV off roading, but they didn't leave enough room between the tire and the fender. I even heard that some knobbies will eat up the plastic fender from the inside, due to increase of tire circumference at speed. They should have allow at least 1" or better knowing that people will take it off road.Does your engine and upper front area get much front wheel mud spray? I have been wanting to remove my oem plastic cowling and install a sump guard but when I check out the front of the bike after a muddy ride the oem cowling is quite muddy all the way up to the top and without it the front of the engine and radiator would be quite splattered. I was thinking maybe a front fender extender would help.