Steel is Real

The ONLY ONE frame and fork are made of chromium- molybdenum alloy steel, often referred to as “chrome-moly” or “cro-mo.”  We use True Temper brand for the fork blades and steerer, the main tubes, head tube and seat stays.  Our HouseBendTM chainstays start as straight, oversized 30X16 mm oval-to-round tapered tubes, which we manipulate to achieve our special shape.   This careful forming gives the ONLY ONE generous tire and fender clearance along with the ability to run a 55 tooth Gates belt drive sprocket on a narrow chainline.  We also bend our fork blades in-house, which gives us control over the rake and location of the bend.

The steel in True Temper tubes comes from mills in Pennsylvania, where it’s drawn into seamless, plain gauge stock and then shipped by rail to True Temper’s plant in Amory, Mississippi.  This is where the transformation to lightweight, high-performance bike tubing takes place.  By drawing the steel through dies, rollers and mandrels, the tubing is butted or tapered to suit each location in a bike frame.  After being formed to shape, and depending on the application, the tubes are then stress relieved, heat treated, or air hardened.  We use a mix of True Temper tubes, including air-hardened OX Platinum, heat-treated Verus 4130, and stress-relieved Verus 4130.

The main tubes in the ONLY ONE are double-butted, meaning that the wall thickness is greater at each end than in the middle.  This gives extra strength where the tubes are joined and reduces weight in the middle, thinner section.  The top of the seat tube is externally butted, so the transition in wall thickness can be felt by hand and seen as a subtle increase in outer diameter.  All of the other butts are internal.  The fork blades and stays are taper-gauge, with the wall thickness tapering from one end to the other.

Our selection of tubing diameter, wall thickness and butt length, together with the ONLY ONE’s geometry, gives the Speedhound a ride that’s taught, plush, responsive, predictable, lively, and tough, all at the same time. We’re convinced that modern steel alloys give the best combination of performance, weight, durability and value.  It’s what we’re made of.

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