Overview
The Fastrax TRX-4 Brass BK Front Caster Block (2) is a premium performance upgrade component designed specifically for Traxxas TRX-4 scale crawlers. This high-quality brass caster block set is engineered to enhance the handling characteristics and performance of your TRX-4 platform, making it an essential upgrade for serious RC enthusiasts across the UK. Whether you're a dedicated trail crawler, a weekend basher, or an RC competitor looking to fine-tune your machine, this Fastrax component delivers the precision engineering and durability that separates a good crawler from a great one.
Fastrax is recognised as a leading manufacturer of premium RC upgrade parts and components, and this brass caster block exemplifies their commitment to quality and performance. The front caster blocks are critical chassis components that directly influence your crawler's steering response, cornering stability, and overall handling characteristics. By upgrading to these brass units, you benefit from superior material properties that traditional plastic alternatives simply cannot match. The added weight distribution of brass also contributes to improved weight management across your TRX-4 chassis, which can significantly enhance traction, stability, and control during challenging terrain traversal and competitive trail runs.
This is an ideal upgrade for any TRX-4 owner who wants to squeeze maximum performance from their rig. Available as a ready-to-fit pair, the Fastrax TRX-4 Brass BK Front Caster Block (2) is straightforward to install and compatible with a comprehensive range of Traxxas TRX-4 models across the full platform lineup, from the Ford F-150 Ranger XLT High Trail Edition to the Chevrolet K10 Cheyenne High Trail Edition, and the iconic 1972 Chevrolet K5 Blazer variants. RC car UK owners trust Fastrax upgrades to deliver measurable improvements in performance and longevity.
Key Features
- Brass Construction — These caster blocks are manufactured from brass rather than standard plastic, providing superior durability, longevity and rigidity under the demanding conditions of trail crawling and off-road use. Brass offers excellent wear resistance and maintains its structural integrity through thousands of running hours.
- Dual Unit Package — The set includes two caster blocks, providing you with the complete front pair needed for a full upgrade. This eliminates the need to source components from multiple suppliers and ensures consistent performance across both sides of your TRX-4 chassis.
- Factory Fitment Quality — Engineered and manufactured by Fastrax to OEM standards, these components are designed to fit seamlessly into Traxxas TRX-4 platforms without modification or adjustment. The precision tolerance ensures immediate compatibility and hassle-free installation.
- Enhanced Steering Response — The superior rigidity of brass caster blocks reduces flex during cornering and climbing, translating to more predictable steering inputs and improved overall handling. This is particularly valuable when navigating technical terrain or competing in trail events.
- Weight Distribution Benefits — The density of brass contributes to improved weight centralisation on the chassis, which enhances traction distribution, suspension performance and overall stability during acceleration, braking and traversal of uneven ground.
- Broad TRX-4 Compatibility — These caster blocks are compatible with an extensive range of Traxxas TRX-4 models, including the Chevrolet K10 Cheyenne High Trail Edition (red, black, metallic silver, metallic copper and metallic blue variants), the Ford F-150 Ranger XLT High Trail Edition (blue, black and brown variants), the 1972 Chevrolet K5 Blazer High Trail Edition, the 1979 Chevy Blazer with clipless body, the Nissan Pathfinder SE-V6, the 2021 Ford Bronco, the TRX-4 Defender 4WD RTR with clipless mounting, the TRX-4 Sport High Trail Edition, the TRX-4 Sport with Clipless Body, and the TRX-6 Mercedes-Benz G 63 AMG XL-5, making this one of the most versatile upgrades available.
Technical Performance
The Fastrax TRX-4 Brass BK Front Caster Block (2) represents the pinnacle of chassis upgrade engineering for scale crawler applications. Constructed entirely from premium brass material, these caster blocks deliver the rigidity, durability and performance characteristics that dedicated RC crawlers demand. Brass is significantly denser and more rigid than the plastic compounds used in standard caster blocks, which translates to reduced chassis flex during high-stress manoeuvres such as rock crawling, hill climbing and technical terrain navigation. The superior material properties ensure that your TRX-4's steering geometry remains consistent and predictable across all driving conditions, from muddy trail courses to rocky outcrops and steep climbs. The enhanced rigidity of brass construction also distributes loads more effectively across the suspension mounting points, reducing stress on other chassis components and extending the overall lifespan of your crawler. For competitive trail runners and serious hobbyists, the performance gains are immediately noticeable—improved steering response, enhanced cornering stability, better traction distribution and more responsive handling. The precision engineering ensures these components integrate seamlessly with your existing TRX-4 platform without any modification, modification or adjustment required. Whether you're pushing your crawler to its limits on technical courses or simply seeking to optimise your machine for maximum capability, the Fastrax brass caster blocks deliver measurable improvements across the board.
What's in the Box
- Fastrax TRX-4 Brass BK Front Caster Block (2) — complete pair ready for immediate installation
Frequently Asked Questions
- Will these brass caster blocks fit my Traxxas TRX-4 crawler? — Yes, these Fastrax brass caster blocks are engineered specifically for Traxxas TRX-4 platforms and offer compatibility across an extensive range of models including the Chevrolet K10 Cheyenne High Trail Edition, the Ford F-150 Ranger XLT High Trail Edition, the 1972 K5 Blazer, the 1979 Chevy Blazer, the Nissan Pathfinder SE-V6, the 2021 Ford Bronco, the TRX-4 Defender, the TRX-4 Sport variants and the TRX-6 Mercedes-Benz G 63 AMG XL-5. Check the full compatibility list to ensure your specific model is supported.
- What are the benefits of brass caster blocks compared to plastic ones? — Brass offers superior rigidity, durability and wear resistance compared to standard plastic caster blocks. The increased material density contributes to better weight distribution on your chassis, improved steering response, reduced flex during cornering and climbing, enhanced traction characteristics and longer component lifespan under demanding trail conditions.
- Are these easy to install? — Yes, these Fastrax brass caster blocks are engineered for factory fitment into Traxxas TRX-4 platforms. The precision tolerance ensures seamless installation without modification or special tools beyond standard RC maintenance equipment. Installation should take only minutes for experienced builders.
- Do I need to purchase anything else with these caster blocks? — The package includes both caster blocks needed for a complete front upgrade. You will need your standard TRX-4 maintenance tools and any fasteners that may have worn on your existing blocks, but otherwise these are a complete ready-to-fit pair requiring no additional components.
- What is the difference between brass and plastic caster blocks? — Brass is significantly more rigid and durable than plastic, providing superior structural integrity under stress. Brass caster blocks reduce chassis flex, maintain steering geometry consistency, improve weight distribution for better traction, and last considerably longer through extensive use. The added cost is justified by improved performance and extended component lifespan.
- Are these official Traxxas parts? — These are Fastrax brand upgrade components engineered specifically for TRX-4 compatibility. Fastrax is a recognised manufacturer of premium RC components and upgrade parts, and these caster blocks represent their engineering and quality standards.
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 TRX-4 Brass BK Front Caster Block (2) FTTX315BRB 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.
- Brand: Fastrax
- Model Number: FTTX315BRB
- EAN: 5056135728413
- Product Type: Front Caster Block Set
- Quantity: 2 units per package
- Material: Brass
- Tune-Up Type: Chassis Upgrade
- Compatible Platform: Traxxas TRX-4 Series
- Compatible Models: TRX92056-4-RED (Chevrolet K10 Cheyenne High Trail Edition Red), TRX92056-4-COPR (Chevrolet K10 Cheyenne High Trail Edition Metallic Copper), TRX92046-4-BLUE (Ford F-150 Ranger XLT High Trail Edition Blue), TRX92086-4-RED (1972 Chevrolet K5 Blazer High Trail Edition Red), TRX92046-4-BLK (Ford F-150 Ranger XLT High Trail Edition Black), TRX82276-4-RED (1979 Chevy Blazer Red), TRX110056-4-SLVR (Nissan Pathfinder SE-V6 3S Silver), TRX92056-4-BLK (Chevrolet K10 Cheyenne High Trail Edition Black), TRX92056-4-SLVR (Chevrolet K10 Cheyenne High Trail Edition Metallic Silver), TRX92056-4-BLUE (Chevrolet K10 Cheyenne High Trail Edition Metallic Blue), TRX92046-4-BRWN (Ford F-150 Ranger XLT High Trail Edition Brown), TRX92086-4-BLUE (1972 Chevrolet K5 Blazer High Trail Edition Blue), TRX82276-4-BLK (1979 Chevy Blazer Black), TRX82216-4-R6 (TRX-4 Unassembled Chassis Kit), TRX110056-4-RED (Nissan Pathfinder SE-V6 3S Red), TRX92076-4-ORNG (2021 Ford Bronco Orange), TRX92076-4-BLK (2021 Ford Bronco Black), TRX92076-4-RED (2021 Ford Bronco Red), TRX92076-4-WHT (2021 Ford Bronco White), TRX82256-4-RED (TRX-4 Defender Red), TRX82256-4-SLVR (TRX-4 Defender Silver), TRX82256-4-GRN (TRX-4 Defender Green), TRX82256-4-SAND (TRX-4 Defender Sand), TRX82044-4-BLUE (TRX-4 Sport High Trail Edition Metallic Blue), TRX82224-4-BLUE (TRX-4 Sport Blue), TRX82234-4-ORNG (TRX-4 Sport Orange), TRX82224-4-GRAY (TRX-4 Sport Gray), TRX88296-4-SLVR (TRX-6 Mercedes-Benz G 63 AMG XL-5 Silver), TRX88296-4-BLK (TRX-6 Mercedes-Benz G 63 AMG XL-5 Black)
- Package Contents: 2 Brass Front Caster Blocks
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- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
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