My bike ride is right about 8km, but in the summer there is no such thing as a "non-sweaty pace". That said, I'm lucky enough to work in a place that has shower facilities in the basement so I just pack my work clothes in a bag and shower/change when I get there. The worst part is putting the sweaty clothes back on for the ride home.

When it is not hot out (like now), I'll just wear appropriate pants and skip the shower. I find my dress pants rub too much in certain areas when on a bike so I still have to change, but it is quick and I shower at home.

I have to say that I really love biking to work. It's way less stressful than sitting in traffic and there are some health benefits too. Plus it has a way lower carbon footprint.