Are you guys sick of seeing the "+" sign after wheel size standards? Ok, I didn't think so. While the mountain bike industry tries to re-align itself on the topic of wheel sizes and tire widths, the rest of us are busy experimenting with tire spec, chainstay length, and bottom bracket drop. Out in Montana, Adam Sklar has some opinions about the aforementioned design options. Slacker, lower and longer bikes tend to enjoy going downhill faster and offer more stability at those speeds. All of which is particularly helpful when encountering a rock garden or chunky section of trail. Many…