Twisted frame? Do you mean damaged after accident? And isn't alloy the normal material for wheels? I live in Germany; there is a lot of rain going on. And snow

Twisted frame? Do you mean damaged after accident? And isn't alloy the normal material for wheels? I live in Germany; there is a lot of rain going on. And snow, occasionally. Icy roads are a serious problem, but I still think a bike is the best way to move about then, just sloooowly. But seriously, the biggest problem is to react fast enough, and not kill yourself by flying over the handlebars or skidding due to traction problems. Using condition-adequate speed helps a lot, of course. I never heard of any well-maintained bike causing problems by not braking sufficiently around here.