Traxxas Tyres, Sledgehammer (belted, dual profile (4.3in outer, 5.7in inner)) (left & right) / foam inserts (2) TRX7870

Overview

The Traxxas X-Series Belted Sledgehammer Tyres represent a significant upgrade for serious RC enthusiasts running X-Truck platforms in the UK. These aren't ordinary tyres — they're engineered with belted construction that delivers game-changing stability and control whether you're slinging mud through off-road terrain or setting speed records on open ground. Available as a genuine Traxxas part (TRX7870), these tyres are the perfect replacement for X-Maxx and XRT models, offering a dramatic improvement in handling and ground clearance that transforms your RC truck's capability and appearance.

If you're an RC car enthusiast in the UK looking to maximise your X-Truck's potential, the Sledgehammer belted tyres deliver the performance upgrade you've been searching for. These tyres are designed specifically for dual-profile X-Truck wheels, fitting the 4.3 inch outer and 5.7 inch inner dimensions perfectly. At 8.4 inches tall, they give your X-Truck a more powerful, commanding stance whilst simultaneously providing even higher ground clearance. Whether you're a weekend basher exploring rough terrain or a serious competitor pushing limits, these tyres will elevate your RC experience.

The Sledgehammer brand has earned recognition amongst RC enthusiasts for delivering reliable, high-performance tyres that perform consistently across different driving conditions. This version features lightweight belting technology that maintains the tyre's shape during aggressive driving, resulting in a larger contact patch that translates to more grip and responsive handling at any speed. The wide, open-block tread design is engineered to prevent dirt and debris from clogging up — a common problem with traditional tread patterns — keeping your tyres clean and maintaining optimal performance throughout your driving sessions.

Key Features

• Belted Construction — The lightweight belting technology maintains the tyre's structural shape even under aggressive cornering and high-speed manoeuvres, ensuring a larger contact patch that delivers superior grip and responsive handling compared to non-belted alternatives. This engineering directly translates to better control and stability whether you're bashing through mud or pushing speed records.
• Wide Open-Block Tread Design — The tread pattern features generous spacing between blocks that prevents dirt, mud and debris from clogging the tyre surface, a critical advantage for off-road RC trucks. This design keeps your tyres cleaner during extended sessions and maintains consistent performance throughout the day without the need for frequent cleaning between runs.
• Dual-Profile Wheel Compatibility — These tyres fit the specific dual-profile dimensions of X-Truck wheels (4.3 inch outer, 5.7 inch inner), ensuring a perfect, secure fit that maximises handling and prevents unexpected tyre movement during high-speed runs or aggressive cornering manoeuvres.
• Increased Diameter for Enhanced Ground Clearance — Standing at 8.4 inches tall, the Sledgehammer tyres provide noticeably higher ground clearance compared to standard options, allowing your X-Truck to clear obstacles more easily and navigate rough terrain with greater confidence. This increase also gives your truck a more powerful, commanding visual stance that reflects its enhanced capability.
• Superior Grip and Responsive Handling — The combination of belted construction, larger contact patch and open-block tread design delivers consistently responsive handling at any speed. You'll notice immediate improvements in cornering control, acceleration grip and braking stability across a wide variety of driving surfaces and conditions.
• Foam Inserts Included — Each set includes two foam inserts that provide essential support and damping for the tyre structure, working in harmony with the belted design to maintain shape and performance throughout extended driving sessions. These inserts are essential for optimal tyre performance and handling characteristics.
• Genuine Traxxas OEM Part — As an official Traxxas component (part number TRX7870), these tyres are manufactured to strict quality standards and designed specifically for X-Maxx and XRT models, guaranteeing perfect fitment and compatibility. You're investing in genuine equipment backed by Traxxas engineering expertise.

Technical Performance

The Traxxas Sledgehammer belted tyres represent the pinnacle of X-Truck tyre engineering, combining proven materials science with innovative design principles. The belted construction uses lightweight reinforcement that maintains structural integrity during the demanding stresses of high-speed running, off-road bashing and aggressive cornering. This engineering approach ensures the tyre maintains consistent shape and contact patch throughout your driving session, something that becomes increasingly important as you push your RC truck harder and faster. The 8.4-inch overall diameter provides measurably higher ground clearance than standard tyres, a critical advantage when navigating rocks, roots and uneven terrain commonly encountered in off-road RC environments. The wide open-block tread pattern represents a departure from traditional closed-block designs, deliberately spacing the tread elements to prevent the accumulation of mud and debris that compromises grip and requires constant cleaning. This design philosophy is particularly valuable for serious RC enthusiasts in the UK who want to maximise running time without constant maintenance interruptions. The dual-profile wheel compatibility (4.3 inch outer, 5.7 inch inner) ensures these tyres work harmoniously with X-Truck platforms, optimising weight distribution and suspension geometry. The two included foam inserts provide essential structural support and damping characteristics that work with the belted construction to deliver the responsive handling and stability Traxxas has engineered into these tyres. Together, these elements create a tyre system that delivers tangible improvements in grip, control and performance across every driving scenario from muddy terrain to high-speed runs.

What's in the Box

• Two Sledgehammer belted tyres (left and right)
• Two foam inserts for tyre support and performance optimisation

Frequently Asked Questions

• Which RC models are these Sledgehammer belted tyres compatible with? — These tyres fit the Traxxas X-Maxx Belted 4WD Brushless RTR 8S Monster Truck in red, green, orange and blue variants, the X-Maxx Ultimate in green and blue, the XRT VXL-8S in blue, orange, green and black, and the XRT Ultimate in green and blue. They're designed as replacement parts for X-Maxx models and as accessories for XRT trucks, making them ideal upgrades regardless of which X-Truck platform you're running.
• What makes these tyres different from standard RC truck tyres? — The Sledgehammer tyres feature belted construction that maintains tyre shape for a larger contact patch and more grip, plus an open-block tread design that prevents dirt clogging. At 8.4 inches tall, they also provide increased diameter for higher ground clearance compared to standard options, delivering noticeably better stability, control and off-road capability.
• Are Sledgehammer belted tyres good for muddy terrain? — Yes, absolutely. The wide open-block tread design specifically prevents mud and debris from building up in the tread, a common problem with traditional closed-block designs. This keeps your tyres cleaner and maintains consistent grip throughout your off-road sessions, making them excellent for muddy UK terrain.
• Do these tyres fit all X-Truck wheels? — No, these tyres are specifically designed for dual-profile X-Truck wheels with 4.3 inch outer and 5.7 inch inner dimensions. They're not compatible with standard wheels, so verify your wheel specifications before ordering. If you have the correct X-Truck wheels, the fitment is perfect and engineered to optimise handling.
• What are the foam inserts for? — The two foam inserts included with these tyres provide essential structural support and damping for the tyre, working with the belted construction to maintain shape and optimise handling characteristics. They're integral to achieving the responsive handling and stability these tyres are engineered to deliver.
• Will these tyres improve my X-Truck's ground clearance? — Yes, significantly. At 8.4 inches tall, the Sledgehammer tyres provide noticeably higher ground clearance than standard tyres, allowing your X-Truck to clear obstacles more easily and navigate rough terrain with greater confidence. This is particularly valuable for serious off-road bashing in the UK.
• Are these genuine Traxxas parts? — Yes, the TRX7870 is an official Traxxas component manufactured to strict quality standards. When you order these tyres, you're investing in genuine OEM parts designed and tested specifically for X-Maxx and XRT models.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas Tyres, Sledgehammer (belted, dual profile (4.3in outer, 5.7in inner)) (left & right) / foam inserts (2) TRX7870 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.