Overview
The RC4WD KING OFF-ROAD SCALE PIGGYBACK SHOCKS W/FAUX RESERVOIR (100MM) Z-D0031 represents the latest evolution in scale realism for serious RC enthusiasts across the UK. Licensed directly from King Off-Road Shocks, these innovative scale shocks have been engineered from the ground up to deliver authentic styling combined with genuine trail-ready durability. Whether you're building a competition-grade scale crawler, a weekend basher, or a display-quality scale model, these piggyback shocks will transform the appearance and performance characteristics of your RC car UK setup.
These are not merely cosmetic upgrades—they are precision-engineered suspension components that respect both scale authenticity and functional performance. The dual spring design and meticulously machined construction ensure your scale build handles the demands of real-world rock crawling, technical terrain, and aggressive trail conditions. Your RC off-road vehicle will never be the same once you bolt up a set of these awesome-looking shocks, which feature authentic King logos on both the faux piggyback reservoir and retainer ring for unmistakable brand recognition.
RC Model Shop is proud to stock the RC4WD King Off-Road Scale Piggyback Shocks, offering UK RC enthusiasts access to premium suspension upgrades that elevate both aesthetics and capability. These shocks are supplied as a pair with decal stickers, ready to install on compatible scale crawlers and off-road vehicles.
Key Features
- Licensed King Off-Road Design — Officially licensed from King Off-Road Shocks, these components feature authentic King branding, ensuring your scale build displays genuine manufacturer recognition and maintains historical accuracy in competition and display settings.
- Precision-Machined Billet Aluminium Construction — Each shock body is machined from billet aluminium, delivering exceptional strength-to-weight ratio and corrosion resistance for extended lifespan even in wet British climate conditions and harsh off-road environments.
- Dual Spring Design — The dual spring suspension architecture provides progressive spring rates and improved damping characteristics, allowing your RC crawler to maintain traction over technical terrain whilst absorbing impacts effectively without bottoming out.
- Authentic Faux Piggyback Reservoir — The detailed faux piggyback design mirrors genuine King Off-Road shock reservoirs, delivering high-end scale realism that sets your build apart from standard suspension setups and impresses fellow RC enthusiasts at club events and competitions.
- Retainer Ring with King Logo — The precision-machined retainer ring features prominent King branding, adding distinctive visual detail and reinforcing the premium quality perception of your complete suspension system.
- Compact 100mm Uncompressed Length — At 3.93 inches (100mm) hole-to-hole uncompressed, these shocks suit medium-scale crawlers and technical off-road vehicles, providing appropriate travel for rock gardens and moderate obstacles without requiring extensive chassis modification.
- Minimal Travel Distance — The 1.18-inch (30mm) travel length is engineered for scale authenticity and precise ground clearance management, preventing unrealistic suspension geometry whilst maintaining functional articulation for technical driving.
- Lightweight Construction — At just 0.9 ounces (26 grams) per shock, the weight penalty is minimal, preserving your vehicle's centre of gravity and handling characteristics whilst upgrading suspension realism significantly.
Technical Performance
The RC4WD King Off-Road Scale Piggyback Shocks demonstrate exceptional engineering throughout their construction. The shock body features a 0.39-inch (10mm) outer diameter, whilst the spring body measures 0.57 inches (14.5mm) in outer diameter, creating proportional visual balance and mechanical functionality. The 0.17-inch (3.5mm) shaft diameter is precision-ground to exacting tolerances, ensuring smooth operation and minimal friction during articulation cycles. The compressed length of 2.75 inches (70mm) and uncompressed length of 3.93 inches (100mm) combine to create 30mm of total travel, precisely calibrated for scale crawler applications. The overall length measurement of 4.28 inches (108.9mm) accommodates diverse mounting configurations on various scale platforms. These shocks are engineered to handle the rocks with confidence, providing durable suspension performance across thousands of trail miles and technical terrain encounters. The billet aluminium construction resists corrosion from moisture and mineral deposits encountered during off-road adventures, ensuring long-term functionality and maintaining visual appeal throughout extended ownership.
Installation and Compatibility
The RC4WD King Off-Road Scale Piggyback Shocks are engineered for compatibility with numerous popular scale crawler platforms popular throughout the RC car UK enthusiast community. For Traxxas TRX-4 installations, you will require both the 2mm Black Spacer with M3 Hole (Z-S0600) and the 3mm Black Spacer with M3 Hole (Z-S0806) to ensure proper mounting geometry and alignment. When installing these shocks on the Axial SCX10-3, you should utilise a 5mm Black Spacer with M3 Hole (Z-S0821) on the shock tower for correct fitment. Before final installation, apply blue (medium) thread lock to the bottom shock shaft rod end to help keep the component securely in place during operation, preventing loosening from vibration and mechanical stress. This installation preparation is essential for reliable long-term performance and safe operation on technical terrain.
What's in the Box
- 2x RC4WD King Off-Road Scale Piggyback Shocks w/Faux Reservoir (100mm)
- 1x Decal sticker sheet for customisation and authenticity
Frequently Asked Questions
- Are these King Off-Road shocks officially licensed? — Yes, these RC4WD shocks are officially licensed directly from King Off-Road Shocks, the genuine manufacturer of performance suspension components for full-size off-road vehicles. This licensing ensures authentic branding, accurate design proportions, and genuine brand recognition on your scale build.
- What vehicles are these shocks compatible with? — The 100mm uncompressed length makes these shocks suitable for medium-scale crawlers including Traxxas TRX-4 and Axial SCX10-3 platforms, though compatibility requires appropriate spacer kits. Check the detailed specifications against your current shock dimensions before purchase to ensure correct fitment and optimal performance characteristics.
- Will these improve my scale crawler's appearance? — Absolutely. The precision-machined billet aluminium construction, authentic King logos, and detailed faux piggyback reservoirs deliver high-end visual realism that transforms your scale build's suspension presentation. These shocks are specifically engineered to impress fellow enthusiasts at RC events and competitions throughout the UK.
- How do I install these shocks correctly? — Installation varies by platform. For Traxxas TRX-4 models, you require 2mm and 3mm spacer kits (sold separately). For Axial SCX10-3 vehicles, use 5mm spacers. Always apply blue (medium) thread lock to the bottom shock shaft rod end before final installation to prevent loosening during operation. If your vehicle differs from these platforms, compare the current shock dimensions with the specifications provided to determine compatibility.
- Are these shocks suitable for beginners? — These are scale suspension components intended primarily for experienced RC enthusiasts who understand scale crawler setup and maintenance. Installation requires compatible spacer kits and thread lock application, making them more appropriate for intermediate to advanced builders rather than complete beginners.
- What makes these different from standard shocks? — The RC4WD King Off-Road shocks combine licensed authentic design with precision engineering in ways standard shocks cannot match. The dual spring design provides superior damping characteristics, the billet aluminium construction ensures durability, and the detailed faux piggyback reservoirs deliver unmatched scale realism that elevates any build significantly above baseline suspension solutions.
- Can I use these shocks on other vehicle platforms? — Potentially, yes, but only with careful measurement and comparison. Check your current shock dimensions against the specifications provided (compressed length 70mm, uncompressed length 100mm, overall length 108.9mm, shaft diameter 3.5mm, body OD 10mm). If your vehicle uses shocks with similar dimensions, these may fit, though appropriate spacer kits might be required for proper alignment.
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 KING OFF-ROAD SCALE PIGGYBACK SHOCKS W/FAUX RESERVOIR (100MM) Z-D0031 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.
- Product Type: Scale Piggyback Shock Absorbers (Pair)
- Brand: RC4WD
- Model Number: Z-D0031
- Licensed From: King Off-Road Shocks
- Quantity Included: 2 shocks
- Material: Precision-machined billet aluminium
- Design: Dual spring design
- Faux Piggyback Reservoir: Yes, with King logo
- Retainer Ring: Yes, with King logo
- Weight per Shock: 0.9oz (26g)
- Hole to Hole (Compressed): 2.75 inches (70mm)
- Hole to Hole (Uncompressed): 3.93 inches (100mm)
- Overall Length: 4.28 inches (108.9mm)
- Travel Length: 1.18 inches (30mm)
- Shock Body Outer Diameter: 0.39 inches (10mm)
- Spring Body Outer Diameter: 0.57 inches (14.5mm)
- Shaft Diameter: 0.17 inches (3.5mm)
- Compatible Vehicles: Traxxas TRX-4 (requires 2mm and 3mm M3 spacers), Axial SCX10-3 (requires 5mm M3 spacer)
- Installation Requirements: Blue (medium) thread lock recommended for bottom shock shaft rod end
- Accessories Included: 1x Decal sticker sheet
- Scale Classification: Medium-scale crawler suspension
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- 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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