In Norway almost everybody drives 10-15 km over the speed limit.
I'm taking my drivers license now and just learning to drive (no exciting reason, just never got around to it before and didn't have a car), and I try to stay about 5 km above the limit. Fast enough to keep up with traffic, slow enough that if I'm stopped the police won't make a huge fuss. Driving AT the speed limit is downright dangerous, as everybody tries to pass you and you cause huge queues.
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