Spindle Rocket XR1 Left

The PPM Racing Products Spindle Rocket XR1 Left is a precision-engineered front spindle assembly designed for serious performance enthusiasts and professional racers who demand reliability under extreme load and cornering stress. This left-side spindle serves as a critical steering and suspension component, handling both braking forces and lateral acceleration while maintaining precise wheel alignment. Built for track applications, road racing, and high-performance street builds, the Spindle Rocket XR1 Left replaces worn or damaged OEM spindles with a unit engineered for superior geometry and durability.

This spindle assembly features a forged or high-strength steel construction that resists the torsional and vertical loads imposed during aggressive acceleration, hard braking, and high-speed cornering. The precision-machined bearing surfaces ensure smooth rotation while minimizing runout, which translates to accurate brake rotor clearance and consistent pedal feel. The Spindle Rocket XR1 Left incorporates optimized geometry to work in concert with performance suspension systems, maintaining proper kingpin inclination and scrub radius for responsive steering response and reduced bump steer. At 9.21 lbs, the spindle delivers the structural integrity required for race-duty applications without unnecessary mass penalty.

The Spindle Rocket XR1 Left is ideal for road racers, autocross competitors, and dedicated performance car builders upgrading suspension geometry or replacing damaged factory spindles. Installation requires proper wheel alignment verification post-installation to ensure camber, caster, and toe settings are correct—this is not a bolt-and-go component. Verify compatibility with your vehicle platform and existing suspension modifications, as spindle selection depends on hub diameter, bearing type, and brake caliper mounting configuration. Professional installation and alignment are strongly recommended to maximize safety and performance benefits.