Z-T0030

Overview

The RC4WD Rock Crusher II X/T 1.9" Tyres (Z-T0030) represent the second generation of RC4WD's legendary rock crawler tyre range, engineered specifically for extreme terrain performance. Whether you're running a competitive rock crawler, a weekend basher tackling challenging trails, or exploring the world of scale RC crawling for the first time, these tyres deliver exceptional grip and durability when you need it most. As a UK RC retailer serving the climbing and crawling community, we've found that the Rock Crusher II X/T stands out among 1.9" RC tyre options available in the UK market because of its advanced compound and thoughtfully redesigned tread pattern that simply works across virtually every rocky terrain you'll encounter.

This pair of tyres comes complete with foam inserts and includes free wheel weights to help you dial in the perfect balance and traction for your specific setup. The inclusion of these weights means you can start experimenting immediately without purchasing additional accessories separately, making this an excellent value proposition for serious RC enthusiasts and those new to the hobby alike. RC4WD has invested significant engineering effort into the second-generation design, and it shows in every detail from the reinforced sidewalls through to the sticky rubber compound used throughout.

The Rock Crusher II X/T tyres are purpose-built for 1.9" wheels and work seamlessly with RC4WD's complete wheel range. They mount on a 48mm inner diameter and feature an outer diameter of 110mm, making them ideal for scale crawlers, trail trucks and any 1.9" wheeled RC vehicle that demands maximum grip and obstacle-clearing capability. For a complete four-wheel setup on your truck, you'll need two sets of this product, which most UK RC enthusiasts keep in their kit rotation for swapping between different terrain conditions.

Key Features

• Opened Lug Design — The second-generation Rock Crusher II X/T features an all-new opened lug pattern that provides significantly increased bite on rocky terrain, meaning your tyres grip individual rocks, ledges and obstacles with far greater grip than the original generation, translating directly to improved climbing ability and reduced wheel slip.
• Redesigned Side Tread — The sidewall tread pattern has been completely reimagined to offer extra bite during extreme tilting and side-hilling situations, which is absolutely critical when you're attempting steep rocky ascents or navigating challenging off-camber obstacles where traditional tyres simply can't maintain purchase.
• Advanced X3 Soft & Sticky Compound — RC4WD's proprietary X3 rubber formulation delivers exceptional grip across a wide temperature range whilst maintaining durability even during extended crawling sessions, ensuring that your tyres perform consistently whether you're racing in summer sunshine or tackling winter trails in the UK.
• Reinforced Sidewalls — Heavy-duty sidewall construction resists punctures, cuts and deformation when cornering hard or running over sharp rocks, meaning your investment in these premium tyres is protected during aggressive off-road use and you'll enjoy extended tyre life compared to standard options.
• Included Foam Inserts — Two foam inserts are supplied with every pair, providing the proper support structure and compliance that allows the tyre to conform to uneven terrain whilst maintaining structural integrity, essential for genuine scale crawling performance.
• Free Wheel Weights — Every purchase includes complimentary wheel weights, allowing you to fine-tune the balance and handling characteristics of your RC vehicle immediately without additional spending, a thoughtful inclusion that demonstrates RC4WD's understanding of what crawlers actually need.

Technical Performance

The Rock Crusher II X/T 1.9" tyres showcase engineering excellence throughout their construction. Each tyre has an outer diameter of 110mm (4.33 inches) and a width of 38.3mm (1.50 inches), fitting exclusively on 1.9 inch diameter wheels with a 48mm inner diameter mounting surface. The advanced X3 soft compound has been specifically formulated to provide maximum grip on rocky terrain whilst maintaining reasonable wear characteristics, and the reinforced sidewall construction means these tyres can handle the punishment that rock crawling demands. The opened lug design and redesigned side tread work together in perfect harmony to deliver grip across multiple surfaces and angles—whether you're climbing vertically up a boulder face, bridging a gap between two rocks, or maintaining traction on loose terrain. These tyres are approximately 7mm larger in outer diameter than many kit-supplied tyres, giving your crawler improved ground clearance and a more authentic scale appearance. The inclusion of foam inserts ensures proper tyre structure and allows the rubber to flex appropriately over obstacles, whilst the free wheel weights help optimise your setup's centre of gravity and handling balance, which is particularly important in competitive crawling where precision weight distribution can be the difference between success and failure on technical courses.

What's in the Box

• 2 x RC4WD Rock Crusher II X/T 1.9" Tyres
• 2 x Foam Inserts
• Free Wheel Weights

What You Need to Complete

• 1.9" RC Wheels (RC4WD recommends their own wheels but compatibility with other quality manufacturers' 1.9" wheels is possible, though not guaranteed)
• A second set of this product if you require a complete four-wheel setup (this product contains one pair only)
• RC Crawler or Compatible 1.9" Wheeled Vehicle (such as Gmade Sawback models which these tyres are confirmed to fit)

Frequently Asked Questions

• What wheel size do the Rock Crusher II X/T 1.9" tyres fit? — These tyres are engineered exclusively for 1.9 inch diameter wheels with a 48mm inner diameter mounting surface. They will not fit other wheel sizes, and RC4WD recommends using their own 1.9" wheel range for guaranteed compatibility, though they may work with quality 1.9" wheels from other manufacturers depending on specific wheel design and construction.
• How many tyres do I need for my RC crawler? — This product contains one pair (two tyres) with foam inserts and free weights. Most RC crawlers and rock trucks use four wheels, so you will need to purchase two sets of this product to completely equip your vehicle, meaning you'll have a full set of four matching Rock Crusher II X/T tyres ready for your next adventure.
• What is the difference between the original Rock Crusher and the Rock Crusher II X/T? — The Rock Crusher II X/T is the second generation featuring opened lugs and a completely redesigned side tread pattern for improved grip on rocky terrain. The tread has been optimised based on real-world feedback from UK RC crawlers and competition drivers, resulting in noticeably better bite on obstacles and enhanced performance during extreme tilting and side-hilling situations that are common in technical crawling courses.
• Are these tyres suitable for beginners? — Yes, absolutely. The Rock Crusher II X/T tyres are suitable for anyone getting started with 1.9" wheeled RC crawlers. They offer excellent grip and reliability, making them ideal for learning proper crawling techniques and building confidence on progressively more challenging terrain without having to worry about tyre performance being a limiting factor.
• Will these tyres work with my Gmade Sawback? — Yes, these Rock Crusher II X/T tyres are confirmed to be compatible with Gmade Sawback models. You'll notice the outer diameter is approximately 7mm larger than standard kit tyres, which gives your Sawback improved ground clearance and a more authentic scale appearance whilst delivering significantly better real-world crawling performance.
• What compound are these tyres made from? — The Rock Crusher II X/T tyres are moulded from RC4WD's proprietary Advanced X3 soft and sticky rubber compound, which provides exceptional grip across varying temperature conditions. This formulation is significantly softer and stickier than standard RC tyres, delivering maximum purchase on rocky terrain whilst maintaining reasonable durability throughout an extended crawling season.
• What is included with these tyres? — Each pair of Rock Crusher II X/T 1.9" tyres comes with two foam inserts (one per tyre) that provide structural support and allow proper tyre flex over obstacles, plus a free set of wheel weights that you can use immediately to dial in the balance and handling characteristics of your specific RC vehicle setup.

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 RC4WD ROCK CRUSHER II X/T 1.9" TYRES Z-T0030 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.