United Severance Cranks

The 22mm spindle offers a significant upgrade in stiffness and strength compared to standard 19mm spindles. This extra diameter helps resist bending during hard landings and heavy impacts, which is essential for BMX riding.

Not at all. While they use a 3-piece system, they are designed for 2-piece ease of assembly. The package includes the necessary installation tool and grease to make the process straightforward.

Yes, the spindle boss is specifically shaped to be smooth and rounded, which minimizes the sharp edges that typically catch your ankles during tricks or pedaling. It is a subtle design choice that makes a noticeable difference in comfort.

4130 chromoly is the industry standard for high-end BMX parts because of its excellent strength-to-weight ratio. Because these arms are also heat-treated, they are built to withstand the high stress of street and park riding without bending or snapping.

Yes, the United Severance Cranks are compatible with the Metro spline drive sprocket, including LHD setups, thanks to the 48-spline spindle interface.

The choice between 165mm and 175mm usually comes down to personal preference and riding style. Shorter 165mm arms provide more clearance for grinds and are popular for street riding, while 175mm arms offer a bit more leverage for pedaling and dirt jumping.