meh, mostly to damn cold when its raining here. I can probably count on 1 hand the number of foul weather riders I've seen on local bike routes over the past 4-5 yrs, for some reason they just don't do it. on a commuter bike I could see it a bit more, in the cannondale lineup I'd be more inclined to get a synapse alloy disc, it has eyelets for racks and fenders, much more commute friendly and commuters are about the only foul weather riders around here. granted, I'm in the north 'burbs, not city, and commute when I can.