er - Our proprietary blend of lightweight aluminum alloy is continuously cold extruded to a single wall thickness. Frames built with Alpha Silver feature mechanical forming and are finished using Trek's smooth-weld finishing process.
Alpha Gold - Our high-performance lightweight aluminum alloy is continuously cold extruded and butted for weight reduction and superior strength. Frames built with Alpha Gold feature mechanical forming and hydroforming to create more complex industrial designs for even lighter weight, and are finished using Trek's smooth-weld finishing process.
Alpha Platinum - Our premium, aluminum alloy is continuously cold extruded and butted for weight reduction and superior strength. Frames built with Alpha Platinum feature extensive hydroforming to create the most complex industrial designs for the lightest weight, and are finished using Trek's smooth-weld finishing process.