Mayhem Cyclone 8121 20x9 Wheel

The Mayhem Cyclone 8121 is a 20x9 cast aluminum alloy wheel built for trucks, Jeeps, and SUVs, rated to carry loads up to 3,640 lbs on 40-inch tires. Sold individually (price is for one wheel). Available in nine bolt-pattern and offset combinations spanning 6-lug and 8-lug applications, all in Gloss Black.

Built to Handle Real Loads

The Cyclone 8121 carries a load rating up to 3,640 lbs when mounted on 40-inch tires, a figure that matters when a truck is loaded with gear, a trailer is on the hitch, or a Jeep is crawling terrain that puts uneven stress on each corner. A wheel that meets that rating gives you a meaningful margin over stock-replacement options sized for lighter-duty use.

Aluminum Alloy Construction

The Cyclone 8121 is cast from high-quality aluminum alloy, which keeps unsprung weight lower than a comparable steel wheel while maintaining the structural integrity needed for demanding off-road and towing use. The Gloss Black finish is the available option across all nine variants.

TPMS Compatible and Lifetime Structural Warranty

The Cyclone 8121 is compatible with factory tire-pressure monitoring systems, so you can retain your vehicle's TPMS sensors without modification. Mayhem backs the wheel with a lifetime structural warranty, a meaningful commitment on a component that sees the stress of off-road and load-bearing use.

Features

• Load rating: up to 3,640 lbs on 40-inch tires
• Material: cast aluminum alloy
• Finish: Gloss Black
• TPMS compatible: retains factory tire-pressure monitoring sensors
• Lifetime structural warranty
• Nine bolt-pattern and offset variants: 6-lug and 8-lug configurations available

Specifications

Who This Is For and Isn't

The Cyclone 8121 suits truck, Jeep, and SUV owners running 6-lug or 8-lug hubs who need a 20x9 wheel with a load rating capable of supporting 40-inch tires and real-world towing or off-road loads. The nine available bolt-pattern and offset combinations cover a wide range of 6-120, 6-139.7, 8-165.1, 8-170, and 8-180 applications.

The Cyclone 8121 is not available in finishes other than Gloss Black, in sizes other than 20x9, or in bolt patterns outside the nine listed variants. Confirm your vehicle's bolt pattern, offset requirement, and hub bore against the specification table before ordering. Vehicle fitment by make, model, or year is not provided here.

Common Questions

Is the price for one wheel or a set of four?

The Mayhem Cyclone 8121 is sold individually. The listed price is for one wheel. Order the quantity you need at checkout.

How do I know which bolt pattern and offset to choose?

Match the bolt pattern (number of lugs and bolt-circle diameter, e.g. 6-139.7) and hub bore to your vehicle's hub specs, then choose the offset that achieves your desired stance. The offset and hub bore for each Cyclone 8121 variant are listed in the Specifications table above. If you are unsure of your vehicle's specs, consult a wheel fitment guide or your vehicle's service manual before ordering.

Will the Cyclone 8121 work with my factory TPMS sensors?

The Mayhem Cyclone 8121 is TPMS compatible and is designed to accept standard factory tire-pressure monitoring sensors. Confirm sensor compatibility with your specific sensor type before installation.

What is the load rating, and does it depend on tire size?

The Mayhem Cyclone 8121 carries a load rating up to 3,640 lbs when mounted on 40-inch tires. Consult Mayhem's load rating documentation if you are running a different tire size to confirm the applicable rating for your setup.

What warranty does the Cyclone 8121 carry?

The Mayhem Cyclone 8121 comes with a lifetime structural warranty. Contact TerrainVault for warranty claim assistance.