KING OF THE HAMMERS 2025: THE ULTIMATE OFF-ROAD CHALLENGE IN JOHNSON VALLEY
What is King of the Hammers?
King of the Hammers (KOH) is more than just a race; it's an off-road adventure, a community gathering, and a celebration of endurance and strength. Held annually in the rugged desert of Johnson Valley, California, it's recognized as one of the most challenging and prestigious off-road races in the world. With a unique combination of rock crawling, desert racing, and grueling obstacles, KOH attracts thousands of spectators, competitors, and enthusiasts every year. But what exactly makes this event so popular, and how can you make the most out of your experience as both a spectator and a participant?
What Brings in the Crows at King of the Hammers?
The Challenge
At the heart of KOH is the extreme difficulty of the course. The race is a grueling 200-mile endurance event where drivers face punishing desert terrain, rocky mountains, sand dunes, and natural obstacles that push both their vehicles and driving skills to the limit. It combines the technical demands of rock crawling with the high-speed action of desert racing, making it one of the most exciting and unpredictable events on the off-road calendar.
The Spectacle
The race draws a massive crowd not only for the thrilling competition but also for the community that comes with it. KOH is a true festival of off-road culture, attracting manufacturers, enthusiasts, teams, and fans alike. It's a week-long celebration with parties, product showcases, and opportunities to meet the drivers and sponsors who make it all happen. Whether you're there for the race or the camaraderie, the energy and excitement are palpable. Champions are built from racing in this event and is a start to the off-road season ahead.
The Uniqueness
King of the Hammers is unlike any other race. The terrain is unforgiving, and the obstacles are specifically designed to challenge even the most experienced drivers. The race is not only a test of vehicle durability but also driver resilience and strategy. Spectators witness moments of triumph and failure, making every second of the race unpredictable and intense.
Things To Consider Bringing Along as A Spectator to King of The Hammers

If you're planning to attend KOH as a spectator, you're in for an adventure of your own. Here are some essential items you'll want to bring to ensure you have the best experience:
Comfortable Footwear and Clothing
The terrain can be rough, and you'll likely be walking or hiking to get the best views of the race. Wear sturdy, comfortable shoes and prepare for a variety of weather conditions. Temperatures can fluctuate drastically from hot desert sun to chilly evenings.
Camping Gear
Many spectators camp out during the event. Bring a good-quality tent, sleeping bag, and other camping essentials. It's a multi-day event, and staying on-site allows you to experience the full atmosphere of the festival.
Fridges & Coolers
There are food vendors on-site, but having your own cooler with drinks, snacks, and meals is a smart idea, especially since access to food and water can sometimes be limited in remote areas. Keep plenty of water on hand to stay hydrated and in a sealed compartment or fridge freezer to maintain things cold.
Portable Chairs
There's a lot of downtime during the race, and a comfortable folding chair can make it easier to relax while you watch the action. Designed to fold easily and fit into car trunks or backpacks, portable camping chairs are all about convenience, making them a must-have for anyone who loves spending time outdoors.
Optional Vehicle Access Pass
For those wanting to get closer to the race or follow it along the course, vehicle access passes are available. If you have a 4x4 or off-road vehicle, this is a great way to explore the race from different angles and see it from the drivers' perspective.
What To Bring as A Participant at King of The Hammers

For those looking to compete in King of the Hammers, preparation is everything. KOH demands a high level of skill, strategy, and resilience. Here's are some tips on what you need to bring to participate and help finish the race:
A Fully Equipped Off-Road Vehicle
Your vehicle must be capable of handling extreme terrains like rocky trails, dunes, and deep sand. Most competitors opt for highly modified rock crawlers or purpose-built desert racers that can handle the abuse of both high-speed desert racing and rock crawling.
Recovery Winch
In case you get stuck or need to assist other competitors, a high-quality winch is an essential piece of recovery gear. A winch mounted to the front or rear of the vehicle can be used to pull the vehicle out of difficult situations, whether you're stuck in a sand dune, bog, or deep rock crevice. Ensure your winch is powerful enough for the weight of your vehicle and equipped with a strong recovery rope or cable.
Tow Straps and Shackles
Tow straps, shackles, and other recovery tools like a high-lift jack or a floor jack are invaluable for getting out of tough situations. These items allow your team to recover your vehicle safely in case it gets stuck or damaged, reducing the risk of a race-ending mechanical failure.
Long Lasting Battery
The race can last for hours, sometimes over 24, and a reliable battery ensures that all electronic systems continue to function throughout the grueling event. A strong battery also powers critical systems such as onboard data logging and telemetry, which help drivers navigate difficult terrain. Additionally, winching and recovery, which are often necessary during the race, require significant electrical power, and a good battery ensures these tasks are completed without issue. Given the harsh desert environment, where heat, dust, and rough terrain can impact weaker batteries, a high-performance battery is crucial for maintaining vehicle reliability and enabling recovery when needed.
Heavy-Duty Suspension System
King of the Hammers isn't just about speed—it's about surviving the toughest terrain. A heavy-duty suspension system is essential for navigating both high-speed desert racing and slow, technical rock crawling. High-performance shocks, like those from FOX Racing or King Shocks, are commonly used, as they offer adjustable damping to handle different types of terrain and obstacles.
Suspension travel is key for overcoming large boulders, sand dunes, and other obstacles. Upgrading to long-travel suspension with high clearance ensures that your vehicle can tackle the roughest terrain without bottoming out or losing traction.
High-Clearance Skid Plates
With the amount of rocks, ruts, and unpredictable terrain at KOH, your vehicle's undercarriage will be at risk of damage. High-clearance skid plates made from aluminum, steel, or other durable materials protect the critical components of your vehicle, including the transmission, oil pan, and differentials. These skid plates help prevent damage from rocks and debris while allowing you to glide over rough surfaces.
Upgraded Tires and Wheels
The choice of tires can make or break your performance in KOH. Tires need to be durable enough to withstand both the sharp rocks and the desert sands. Off-road race tires, such as those designed by BFGoodrich, Toyo Tires, Falken Tire, or Nitto, are common choices. Look for tires with reinforced sidewalls to avoid punctures, as well as a tread pattern designed to offer excellent grip on both rocky and sandy surfaces.
Tire pressure monitoring systems are also valuable to ensure that the tires are properly inflated throughout the race. Flat tires can be a significant setback, so having spare tires and the necessary tools to swap them out is critical.
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Locking Differentials & Drivetrain
Differential locks (or lockers) are an essential part of any off-road vehicle, particularly for rock crawling and desert racing. Locking differentials allow both wheels on the axle to rotate at the same speed, which is crucial for maintaining traction on uneven or slippery surfaces. This is especially important during the rock crawling sections of KOH, where traction is key to navigating obstacles without getting stuck. Equally important are strong U-joints and upgraded driveshafts, as they handle the immense torque generated during challenging climbs and rapid acceleration. A durable drivetrain ensures your vehicle can transfer power effectively to the wheels without risking breakage or failure in the middle of the race.
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Safety Gear
Personal safety is paramount. A certified helmet, racing suit, gloves, neck restraints, and a fire-resistant suit are required to meet safety standards. Your vehicle should also be equipped with a roll cage, fire extinguisher, and other safety equipment to ensure you're prepared for the toughest conditions.
Fuel Cell or Auxiliary Fuel
In an event like KOH, the terrain is vast, and you may be far from your pit crew, making an adequate fuel system essential for completing the race. Many competitors opt for a race-grade fuel cell—a bladder-style tank designed to withstand impacts and prevent spills—or auxiliary fuel tanks to increase the vehicle's range and ensure sufficient fuel for the next checkpoint or pit stop. For compact and reliable fuel storage, RotopaX containers are a popular choice, offering durable, space-saving options that can be securely mounted to your vehicle, ensuring you're prepared for the unpredictable demands of the course.
Extra Oil & Fluids
King of the Hammers is tough on all components of the vehicle, especially the engine and transmission. Make sure your off-road vehicle is equipped with large-capacity oil reservoirs and specialized transmission fluid coolers to prevent overheating. Keeping the engine and transmission well-lubricated and cool is essential for ensuring that your vehicle runs smoothly throughout the race.
We carry a full range of high-performance racing fluids to keep your vehicle running at its best, no matter the challenge. From engine oils and transmission and brake fluids, our retail locations are stocked with premium products designed for extreme off-road and racing conditions. Whether you're prepping for King of the Hammers or a weekend trail run, we've got you covered! Stop by our retail locations to pick up supplies to stock up.
GPS and Mapping System
King of the Hammers is a massive event that spans a vast desert landscape. A reliable GPS and mapping system is crucial for both staying on track and avoiding getting lost. The vehicle should have a rugged GPS device, preferably with real-time race tracking, as well as preloaded maps of the racecourse.
Communication Systems
Clear communication between the driver, co-driver, and support team is vital. Radios or intercom systems are used to communicate during the race, allowing the team to relay critical information about course conditions, pit stops, or any problems that arise with the vehicle. Two-way radios with long-range capabilities are ideal for keeping in touch over the wide expanses of the racecourse.
Support Team Spotters
King of the Hammers is a grueling race, and having a reliable crew to assist with repairs, logistics, and communications is crucial. Most teams rely on a pit crew to provide mechanical support and ensure that the driver stays on track.
A spotter system helps the driver by providing information about the terrain ahead, obstacles, and the positions of other competitors. Spotters often communicate using radios, and some racers rely on real-time video feeds from cameras mounted on the vehicle or helmet-mounted systems to navigate obstacles with precision.
Physical and Mental Preparation
Preparing for King of the Hammers isn't just about the vehicle. Drivers need to be physically fit and mentally tough to endure the demands of the race. It's a long, demanding event that requires quick thinking, resilience, and the ability to make split-second decisions under pressure.
Conclusion
King of the Hammers is a spectacle like no other, blending the challenge of off-road racing with the thrill of the unknown. Whether you're there as a spectator or a competitor, the event offers a unique experience that celebrates the best of off-road culture. If you're attending as a spectator, be sure to bring your camping gear, protection from the sun, and enthusiasm for a full-on desert adventure. And for participants, make sure your vehicle is race-ready, your safety gear is top-notch, and your team is prepared to handle whatever comes your way. No matter how you approach it, King of the Hammers is an experience you won't soon forget!
If you are not quite gear ready, we specialize in off-road performance parts, accessories, and installations, and has a long history of supporting off-road enthusiasts and racers. Our expertise comes from years of experience in the off-road community, having worked with various vehicle types and offering solutions tailored to the demanding conditions of events like King of the Hammers. Whether it's advising on suspension setups, tire choices, or electrical systems, Off Road Warehouse is a trusted source for expert guidance and equipment to help competitors perform at their best during the event.