Originally Posted by
gregf83
Not sure how you make a 31kg bike unless your tubes are solid. I use a carbon cyclocross bike for commuting in the winter and it has all the fender and rack attachment points that a steel bike has. It's made for cyclocross where crashing is common so it's not fragile and I don't have to worry about rust like you would on a steel bike. And I can take the fenders off, slap on some knobby tires and race it.
It's called a dutch bike mate. They are heavy. They are also built to last, so rust is not going to be a problem. As for racing, who cares? You don't go out and buy a car with the plan of racing it, and neither should you with a commuter bike. Buy a specific racer if that's what you want to do.