UMI Performance A224-250R Front Coilover Double Adjustable Spring Lowering Kit 250lb

The UMI Performance A224-250R is a front coilover kit pairing a high-quality USA-made hybrid coil spring with a 19-way double adjustable Viking shock for superior tunability on the street, strip, or track. This kit includes two front coilover shocks and two front springs at the 250 lb/in spring rate, suited for drag race applications where serious weight reduction has been performed.

Each Viking shock is individually built, dyno tested, and serialized at Viking's facility in Lakeville, Minnesota. Independent compression and rebound adjusters provide 361 possible damping combinations, allowing precise tuning for any driving environment. Shocks are rebuildable at Viking or any authorized Viking rebuild center.

Key Features:

• Includes (2) front coilover shocks — 19-way double adjustable compression and rebound damping
• Includes (2) front hybrid coil springs — 250 lb/in spring rate (11" tall; drag race use with serious lightening required)
• Bearing-mounted lower shock attachment for increased reliability and performance in demanding applications
• Brilliant protective finish for long-lasting corrosion resistance
• No coil spring compressor required — the adjuster serves as the compressor
• Allows ride height adjustment from factory height to 3" of lowering
• Every shock built, dyno tested, and serialized in Lakeville, Minnesota
• Rebuildable at Viking or an authorized Viking rebuild center

Spring Rate Guide (Front):

• 250 lb/in — 11" tall springs; drag race only; serious lightening required
• 350 lb/in — Small block cruise or drag race with lightening
• 450 lb/in — Small block cruise or big block drag race
• 550 lb/in — Small block handling; all big block applications except drag

Bearing Mount vs. Polyurethane: The lower shock attachment is available in polyurethane (mild street use, reduced harshness) or bearing end (corner carving, drag racing, auto-x, and road race). This kit includes the bearing-mounted lower end for maximum performance reliability.

Optional Spanner Wrench & Thrust Bearing Kit: The spanner wrench allows ride height adjustment while the shock remains mounted. The thrust bearing kit installs between the spring and spring seat, reducing friction during height adjustments. This accessory is strongly recommended for ease of adjustment but is not required for installation.

Viking coilovers are fully compatible with UMI's lower control arms or your factory lower control arm. For best handling results, pair with UMI's geometry-corrected upper control arm with tall ball joint.