Due to the rainy weather and my daily commute, I've decided to invest in some SKS Raceblade fenders. The fenders extend only just past vertical of the axle, and so I wonder about how wet I/my drivetrain can expect to get from the remaining exposed tire.
Has anyone looked at this carefully/experimented with the amount of water coming off the tire at different angles/speeds? I would assume that most of the water stays near the ground, and incrementally less water goes around the frame.
What I'm trying to understand is whether I need to buy another fender to block water that will hit my drive train, or if so little will be present by the time it gets past the fender that it won't really matter.
I've uploaded a photo to illustrate my question.