No problems...I have both front and rear bobbed quit a bit and ride in the rain daily...weekly...monthly...Portland, Oregon...if it's raining, either ride or stay home!!
Anyhow, I have had no problems...My tail bag never gets anything from the rear tire...as for the front fender (lower), the down tubes and motor are filthy most of time...and the chopped upper portion of the front fender does allow a "spit" of water at speed...but then I'm soaking wet (gear of course) by then and enjoying the ride!!
I say go for it!!
