people act like because you commute on a bike that you go through minefields. it's ********. I'm 250 lbs but when I was a 150 lb preteen I used to do all sorts of **** with all kinds of bikes, we used to jump 10 speeds of ramps and and we never even broke a spoke. If the wheel is built right, you'll be fine. I'd be a helluva lot more worried about getting a flat tire than having a wheel failure.