The last two weekends I've ridden my new-to-me MTB down to the hike&bike trail because it's either been too cold or wet for me to want to ride my road bike. I spend some time on the street getting down to the trail and have not yet had a roadie return my wife. I get a chuckle out of it, knowing that it's ONLY because I'm on the MTB and am wearing a Camelbak. These are just residential streets where I almost always get an acknowledgement on my road bike.