Originally Posted by
ca7erham
I've got a friend who endoed on the road due to wet rims. He hit the brakes and nothing happened, so he gave it more power. By then his pads had dried the rims, so suddenly he had a more stopping power than he knew what to do with. Left a nice patch of road rash on his face.
and... those few cycles the wheel must spin to have the rims cleared of water can be very dangerous on the trail. as a mountain biker you should know that.