I live in the UK and rim brakes are fine in even heavy rain. What they are not fine with is mud and grit on the rim. I do use a touring bike (basically a racin

I live in the UK and rim brakes are fine in even heavy rain. What they are not fine with is mud and grit on the rim. I do use a touring bike (basically a racing bike that isn't quite as aggressive) and I've ridden that all year round.