I want to put together a tool kit for some longer trail rides. What should I put in it? I'd like to be prepared, but I don't want to be bringing the whole tool box. Ounces = pounds, pounds = pain as they say. What commonly brakes on a trial ride? Allen kit. Some common sockets and driver. Spare tubes. Tire irons. Something to fill a flat tire with. Medium sized crescent wrench, maybe two. Multi-tool. What else? Feel free to post what your kit contains, of if there's a must have tool out there that you recommend. Thanks!