Originally Posted by cubewheels

I ride in very gritty road conditions. Very often there's lots of dust blown over the roads by the wind and I also frequently ride in roads made incredibly dusty by trucks transporting sand and cement and some of these sections are relatively technical gravel, badly damaged road sections (broken apart by those heavy trucks) that never got fixed.

My bike gets this dirty in just couple days of riding in the same route. The dusty sections are often muddy even if the weather is dry (blocked drainage, construction, etc). Full fenders are utter necessity because what made those mud is often sewer water!. I've grown tired of cleaning the bike everytime, I just leave it be in its muddy glory!