This is a video review of the Diamondback Axis mountain bike, which is an aluminum hardtail mountain bike with 27.5 inch wheels, a suspension fork and disk brakes. You can find the Dismondback Axis mountain bike on sale for $350 if you look around, and at that price it is a great deal. The wheels, stem, handlebars and frame are tough and ready to handle serious mountain biking action. If you do a lot of jumping and downhill riding, you will want to upgrade the fork. The Diamondback Axis is a solid mountain bike and a great value for the money.