The MTB ALLOY line consist of three different models: - X-Rubi - Granger - Troy All X-Rubi frames are made of 6061 alloy. They are double butted and heat-threated after the welding. These processes helps us to make it light and strong. Our mountain bikes look agressive due to hydroforming on our top models. In top models you can find tapered forks, thru axles and 1x12 drivetrains.