I commute daily and I weigh 320. I have had no issue from v, cantilever, or caliper brakes. I have never used or needed front or rear suspension. I have had spoke breakage issues on older 700c wheels. With a quality wheel that is no longer an issue. My current commute has a lot of cobblestone which really hurt my hands, back, and butt at times. I got a cheap, rigid, steel 90's mountain bike with 26 inch rims, and put 2.0 inch schwalbe kojak slicks on it. Great ride, and really smooths out the bumps, and much lighter than having a suspension fork. They feel almost as fast as narrower road tires. I also have an older touring road bike that I use for longer distance rides.