Harley-Davidson Seismic 18″ Rear

The Seismic Wheel 10-spoke cast aluminum design is both aggressive in styling and attitude.

• 18″ Rear wheel

• Certified by Harley-Davidson to perform to our tough vehicle standards for quality and durability

• Requires separate purchase of model-specific wheel installation kit, sprocket hardware and brake rotor-specific hardware

• Installation may require purchase of wheel size and model-specific tire

Fits ’18-later FXBR, FXBRS, FLFB, and FLFBS models equipped with ABS. Not compatible with models that have TPMS.

Harley-Davidson Seismic 18″ Rear Custom Colour

The Harley‑Davidson Seismic 18″ Rear Custom Colour Wheel is a premium forged wheel designed to deliver both performance and bold styling for Touring motorcycles. With its distinctive Seismic design and custom colour finish, this wheel is a striking upgrade that enhances the look, feel, and handling of your Harley‑Davidson.

Harley-Davidson Seismic 18″ Rear Forged Aluminum Strength

Crafted from aerospace‑grade 6061‑T6 forged aluminum, the Seismic wheel is engineered for maximum strength and durability. Forging compresses the metal’s grain structure, producing a wheel that is significantly stronger and lighter than traditional cast wheels. This process ensures superior resistance to corrosion, long‑lasting reliability, and the ability to withstand the demands of extended touring rides. Riders benefit from a wheel that not only looks stunning but also delivers dependable performance mile after mile. Harley-Davidson Seismic 18″ Rear

Harley-Davidson Seismic 18″ Rear Lightweight Performance

The forged construction reduces unsprung weight, which directly improves handling and responsiveness. By lowering the mass at the wheel, the suspension reacts more efficiently to road irregularities, enhancing stability, cornering precision, and overall ride quality. Touring riders will appreciate smoother steering, reduced fatigue during long journeys, and greater confidence in maneuvering—even when carrying passengers or luggage. The 18″ size provides a commanding stance while maintaining balance and control, making it ideal for long‑distance touring. Harley-Davidson Seismic 18″ Rear

Harley-Davidson Seismic 18″ Rear Distinctive Seismic Styling

The wheel’s Seismic design features bold, split‑spoke styling that conveys strength and motion even when the motorcycle is at rest. Finished in a custom colour option, it adds a unique, personalized touch that sets your Touring bike apart from the crowd. The finish is carefully applied to highlight the wheel’s intricate details, ensuring a premium look that complements Harley‑Davidson’s Touring lineup. Whether paired with chrome accents or darker finishes, the Seismic wheel delivers a head‑turning aesthetic that reflects your individuality. Harley-Davidson Seismic 18″ Rear

Touring Integration

Engineered specifically for Harley‑Davidson Touring models, the Seismic wheel integrates seamlessly with factory components. It has been rigorously tested to meet Harley‑Davidson’s high standards for safety, durability, and performance. Riders can trust that the wheel not only enhances style but also maintains the reliability expected from genuine Harley‑Davidson parts. Harley-Davidson Seismic 18″ Rear

Harley-Davidson Seismic 18″ Rear Comfort and Control

Beyond its striking appearance, the wheel contributes to rider comfort and control. Its lightweight construction reduces steering effort, making long rides less fatiguing. Improved responsiveness enhances confidence in cornering and maneuvering, particularly when the motorcycle is fully loaded. Touring riders will appreciate how the wheel’s performance characteristics complement the demands of extended travel, ensuring both comfort and control.

Key Features

• Size: 18″ rear wheel, designed for Touring motorcycles.
• Material: Aerospace‑grade 6061‑T6 forged aluminum.
• Finish: Custom colour with bold Seismic styling.
• Performance: Lighter and stronger than cast wheels, improving handling and durability.
• Durability: Resistant to corrosion and tested to Harley‑Davidson’s rigorous standards.

Harley-Davidson Seismic 18″ Rear Conclusion

The Harley‑Davidson Seismic 18″ Rear Custom Colour Wheel (40900574) is the ultimate blend of style and performance. With its aerospace‑grade forged construction, lightweight handling, and bold Seismic design, it enhances both the look and feel of Touring motorcycles. Riders gain improved control, enhanced durability, and a striking custom aesthetic—all backed by Harley‑Davidson’s heritage of quality and innovation. For Touring enthusiasts seeking a premium upgrade that delivers on every front, this wheel is a standout choice. Harley-Davidson Seismic 18″ Rear