FAST1250B

Overview

The Fastrax 1:10 Crawler Slinger 1.9 Mounted Scale Wheel in Black is the ideal choice for enthusiasts building or upgrading their 1/10 scale rock crawlers and trail trucks. Whether you're running a Traxxas TRX-4, an Element RC Enduro, or any other compatible 1/10 scale crawler, these professionally engineered mounted wheels deliver the grip, durability and authentic appearance that serious RC crawlers demand. Fastrax has established itself as a trusted name in the UK RC market, and these Crawler Slinger wheels demonstrate why — they combine scale realism with genuine off-road performance, making them a popular choice for weekend bashers and dedicated trail runners alike.

These are not basic plastic wheels; they represent a significant upgrade for any 1/10 scale crawler. The Crawler Slinger 1.9 is specifically designed to handle the unique demands of rock crawling and trail driving, where traction, sidewall flexibility and durability over rough terrain are paramount. The wheels come pre-mounted and ready to fit, saving you assembly time and ensuring consistent quality straight out of the box. With a 12mm hex fitment that's compatible with dozens of popular 1/10 scale crawler platforms, you can have these on your truck within minutes.

If you're searching for quality 1/10 scale crawler wheels in the UK, or looking to upgrade your current setup with something that offers superior grip and a more realistic appearance, the Fastrax Crawler Slinger 1.9 is an excellent investment. These wheels have been proven on countless crawlers across the UK, delivering the performance and reliability that the RC community has come to expect from Fastrax.

Key Features

• Super-soft compound tyre material — The tyres are manufactured from a specially formulated super-soft compound that maximises grip on rocks, dirt and uneven terrain, giving you better traction and control when navigating challenging obstacles and technical trails. This is essential for rock crawling, where grip directly translates to your ability to climb and maintain momentum on steep inclines.
• Memory foam construction — Integrated memory foam technology allows the tyres to absorb impacts and conform to irregular surfaces, improving contact patch consistency and reducing bounce and wheel spin on uneven ground. This advanced material science means your crawler maintains better grip even when negotiating loose rocks and roots.
• Pre-mounted configuration — These wheels arrive fully assembled and ready to install, eliminating the need for separate tyre mounting, gluing or balancing. Simply bolt them onto your 12mm hex hubs and drive, saving time and ensuring perfect factory-quality fitment every time.
• 1.9-inch scale diameter — The 118.6mm (1.9-inch) diameter is the industry-standard size for 1/10 scale crawlers, providing the proper proportions for authentic scale appearance and optimal ground clearance on most platforms. This size is compatible with the vast majority of 1/10 rock crawler and trail truck designs.
• 12mm hex fitment — The universal 12mm hex format ensures compatibility with dozens of popular 1/10 scale platforms, including Traxxas TRX-4 models, Element RC Enduro variants, FTX Outback Hi-Rock, and many others. This means you're not locked into one particular vehicle platform.
• Pair configuration — Each purchase includes two wheels, allowing you to replace a front and rear wheel or build a complete set when purchasing two pairs. This flexibility means you can upgrade gradually or refresh your entire setup according to your budget.
• Black colour finish — The sleek black finish provides excellent contrast and scale realism, enhancing the appearance of your crawler while complementing most body colours and paintwork.
• Suitable for multiple vehicle types — These wheels are engineered for both rock crawling and trail running applications, making them genuinely versatile across different 1/10 scale crawler platforms and driving styles.

Technical Performance

The Fastrax Crawler Slinger 1.9 represents a significant step forward in 1/10 scale crawler wheel technology. The combination of super-soft compound rubber and integrated memory foam construction creates a tyre that performs exceptionally well across a wide variety of terrains and conditions. The super-soft compound is specifically formulated to maintain grip even in cold weather conditions, which is particularly valuable for UK-based drivers who contend with damp ground and cool temperatures throughout much of the year. The memory foam layer beneath the tyre compound provides structural support and shock absorption without compromising the sidewall flexibility that crawlers require for climbing and obstacle negotiation. The tyre width of 45.6mm provides a broad contact patch that distributes the vehicle's weight effectively across rocky and uneven surfaces, reducing the tendency to hook on sharp rocks and improving overall ride quality. With a diameter of 118.6mm, these wheels are calibrated to work with the suspension geometry and drivetrain ratios of genuine 1/10 scale crawlers, ensuring that you maintain the proper ride height and approach angles. The 12mm hex fitment is precision-engineered to ensure a snug fit with minimal play, translating directly into improved handling precision and reduced unsprung mass that can affect climbing performance. Whether you're tackling rocky terrain, navigating root systems, or crawling through sand and gravel, these wheels provide the performance foundation that allows your crawler's suspension and drivetrain to work as intended. The pre-mounted configuration means you benefit from factory-quality balance and assembly standards that you might struggle to achieve if mounting tyres yourself.

What's in the Box

• Two pre-mounted Crawler Slinger 1.9-inch scale wheels in black
• 12mm hex fitment ready for immediate installation

Frequently Asked Questions

• Are these wheels suitable for my Traxxas TRX-4 crawler? — Yes, the Fastrax Crawler Slinger 1.9 with 12mm hex fitment is confirmed compatible with all Traxxas TRX-4 variants, including the Chevrolet K10 Cheyenne High Trail Edition, Ford F-150 Ranger XLT High Trail Edition, 1972 Chevrolet K5 Blazer, 1979 Chevy Blazer, and Nissan Pathfinder SE-V6 models. The wheels will fit directly onto your TRX-4's existing hubs without modification.
• Will these fit my Element RC Enduro crawler? — Absolutely. These wheels are compatible with the entire Element RC Enduro range, including the Ecto Trail Truck in all colour variants (green, black, grey, tan), the Trailwalker, Knightrunner, Knightwalker, Sendero HD Titanium and all other Enduro platform variants. Element RC crawlers use the standard 12mm hex format that these wheels are engineered for.
• Do I need to glue or mount these tyres myself? — No. These wheels arrive pre-mounted and ready to use. The tyres are already glued to the wheels and balanced at the factory, so you simply need to bolt them onto your crawler's hubs and drive. This saves considerable time and ensures professional-quality fitment every time.
• What is the wheel offset? — The wheel offset specification is listed as TBC (to be confirmed) on the manufacturer page. If the specific offset is critical for your fitment requirements, we recommend contacting our team at RC Model Shop for the most current information from Fastrax.
• Are these suitable for beginners? — Yes. If you're new to RC crawling, these wheels represent an excellent upgrade from basic stock wheels. The pre-mounted configuration means you don't need any specialist skills to fit them, and the super-soft compound provides forgiveness and grip that helps newer drivers build confidence on technical terrain.
• What is the difference between the Crawler Slinger and other crawler wheels? — The Fastrax Crawler Slinger 1.9 stands out because of its combination of super-soft compound and memory foam technology. Many competitor wheels use softer compounds but lack the memory foam support layer, which can result in excessive sidewall squirm and reduced precision. Conversely, some wheels prioritise durability over grip. The Crawler Slinger strikes a genuine balance between grip, durability and performance, which is why it's become a popular choice across the UK RC crawling community.
• Can I use these wheels on the front and rear of my crawler? — Yes. These wheels are suitable for both front and rear positions on most 1/10 scale crawlers. No position-specific fitment is required, giving you maximum flexibility in how you configure your setup.
• Are these wheels waterproof? — The tyres themselves are rubber-based and naturally resistant to water. However, if you're running your crawler through water crossings, ensure that your bearings are sealed and that you service your driveline appropriately after wet conditions, regardless of your wheel choice.
• How do I fit these wheels to my crawler? — First, identify the 12mm hex hubs on your crawler (this is a universal size across most platforms). Remove your old wheels if fitted. Take each new Crawler Slinger wheel and press it firmly onto the 12mm hex hub until it is fully seated. For added security, you may use a small grub screw or clip (depending on your platform). Refer to your specific crawler's manual for any platform-specific installation guidance.
• Will these wheels improve my crawler's appearance? — Yes. The black finish and professional scale design of the Crawler Slinger 1.9 significantly enhance the appearance of any 1/10 scale crawler, giving your setup a more finished and purposeful look compared to basic plastic wheels.

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 FASTRAX 1:10 CRAWLER SLINGER 1.9 MOUNTED SCALE WHEEL BLACK FAST1250B 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.