Based on this chart, which a very kind soul, I forget who, scanned from an old cycling magazine and posted here on TE once, I pump my road bike tires to about 90 psi. Seems to work fine for me. Compared to my cushy mtb tires a road bike feels like a "hard ride" anyway. I use 60 on my mtb on the road, and 40 off-road.
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett