I've never had any problems with spray from the front wheels or fenders, in fact, while ryding solo, if I raise the windscreen & don't stop or go much slower than about 35-40mph I basically don't get wet at all. Yeah, the occasional drop or splatter from over the windscreen, my helmet & visor get a bit wet, and my fingers do too (thinking about fitting 'Bark Busters' for the winter) but the rest of my ryding gear stays mainly dry until the puddle that forms on the pillion seat starts over-flowing & running forwards! And that brings me to ryding with a pillion passenger - the Missus would get SOAKED from behind in even the lightest rain!! Helmet & visor from the front, but the turbulence at the rear of the Spyder would suck up all the spray & lift it over the panniers & top box so that it would then hit the back of her helmet & shoulders, water would run down her neck if she didn't wear a hood, and she'd get REALLY WET from spray due to turbulence lifting all the spray & hitting her from below & behind - the back of her lower legs & under her thighs, water running down her neck & back, & sitting in the ensuing puddle in the seat. She was not impressed...... and I felt every bit of her discomfort!!
pps:
I tried a few different mud flaps to fix this, without much change, then thought about sorting the turbulence back there rather than trying fruitlessly to stop the spray; so after trying a few different spoiler styles, I settled on fitting an expandable rack for the backrest/top box from Rivco, & fitted a 1/8th" thick flat sheet of marine ply onto the top of the rack, converting it into a mini 'whale tail spoiler' & as a result, I now have very successfully sorted the 'getting wet from behind while moving' problem!! Check the rack out here:
https://rivcoproducts.com/shop/can-am-spyder/ca040bk-black/
Sure, if we are driving slowly or in stop/go traffic in the city, then wet weather gear is essential; but now we've got the whale tail spoiler, if we are out touring or heading somewhere out of town &/or cruising somewhere & travelling at speeds of something between about 60 & 80 mph, we generally don't bother to stop for anything short of a cyclone type down pour these days - we get wetter stopping & putting on wet weather gear than we do from just raising the windscreen & keeping on ryding/cruising until we need to fuel up next or we get to wherever we're going!! The whale tail spoiler stops the bulk of the turbulence from behind, which means no spray to soak the pillion & the front & sides of y he RT stay a lot cleaner, cos we ryde in a bubble of mostly rain & spray free air unless we slow below about 40mph, and it's only my fingers & our helmets that ever get wet - & I wear gloves, plus we've got heated hand grips!
Works well, and I notice there is now a 'this is not a luggage rack' spoiler being sold for RT's that looks pretty much identical to the Rivco expandable rack, only solid plate instead of slotted rack, just like our home-made spoiler! Try it, you'll ryde a lot drier, and your pillion passenger, even more so! :thumbup:
Sux I know 
