Progress. Sometimes it happens incrementally—small advancements moving things forward. Other times, it hits like a bolt from the blue, a breakthrough moment when everything changes. The new Altum from Parlee represents both types of progress. The modern tube shaping, the cutting-edge craftsmanship, even the Altum name all leave an immediate, unmistakable impression: this is something new. Yet at the same time, Altum remains true to the Parlee DNA. In fact, it’s a direct descendant of the benchmark Z series. And that means one thing—ride quality comes first. The Altum Disc is engineered specifically for disc brake use with some key frame and fork designs that allow for seamless integration. The frame features the same engineering, design, and geometry as the other two Altum models, but with a modular rear dropout that accepts QR135 or through-axle 142mm wheels. Up front, it has a specially built fork designed for the greater braking forces of disc brakes. It features a 15mm through axle design for added stiffness and steering precision. The frame and fork are fully compatible with mechanical or hydraulic braking systems and various rotor sizes (140-160mm) for added versatility and upgrade options. For adventurous riders who love to tackle unpredictable roads and all kinds of weather, the Altum Disc delivers a new level of performance.