RC4WD KING OFF-ROAD DUAL SPRING SHOCKS (120MM MEDIUM OD) Z-D0067

Overview

The RC4WD King Off-Road Dual Spring Shocks (120mm Medium OD) represent the pinnacle of licensed scale suspension performance for serious RC crawlers and rock crawling enthusiasts across the UK. These officially licensed shocks bring authentic King Off-Road engineering to your scale build, delivering both stunning visual presence and reliable suspension dynamics that serious RC car enthusiasts demand. Whether you're building a high-end scale crawler, upgrading your existing 1/10 scale rock crawler, or seeking premium suspension components that look as good as they perform, these shocks offer a perfect blend of scale realism and genuine performance capability.

Built from the ground up with a completely new design philosophy, the King Off-Road Dual Spring Shocks feature a larger body diameter that enhances the scale appearance of your RC crawler whilst maintaining the precision engineering that RC hobbyists expect. The 120mm medium OD variant offers the perfect balance of stroke length and compact profile, making these shocks compatible with a wide range of popular scale crawler platforms and custom builds. Whether you're tackling rocky terrain, navigating technical obstacles, or simply showcasing your build at local RC meets, these shocks deliver the authentic King look and reliable performance that will transform your suspension setup.

Your scale build will never be the same once you bolt up a set of these awesome looking shocks. The combination of precision-machined billet aluminium construction, dual-spring design, and steel rod end balls creates a suspension system that handles the rocks with confidence whilst maintaining the scale authenticity that separates premium RC crawlers from standard builds. These are the all new licensed dual spring shocks to hit the market and are officially licensed from King Off-Road Shocks, ensuring you're getting genuine licensed performance components built and ready to handle serious off-road use.

Key Features

• Officially Licensed King Off-Road Design — These shocks are officially licensed by King Off-Road Shocks, bringing authentic real-world shock engineering to your RC crawler with the genuine King branding and design language that enthusiasts recognise and respect.
• Precision-Machined Billet Aluminium Construction — Every shock body is precision-machined from billet aluminium, providing exceptional durability, corrosion resistance, and that premium feel that serious RC car builders demand from their components.
• Dual Spring Design for Tunable Suspension — The innovative dual spring system allows you to customise the suspension stiffness and response by adjusting the spring combination, giving you precise control over how your crawler handles different terrain and conditions.
• Steel Rod End Balls — High-quality steel rod end balls ensure smooth articulation and superior durability compared to plastic alternatives, maintaining consistent suspension action through countless rock crawling sessions and technical manoeuvres.
• King Branding on Top Cap and Retainer Ring — Detailed King logos are machined into the top cap and retainer ring, adding authentic scale detail that elevates the overall visual presentation of your build and demonstrates quality craftsmanship.
• Larger Body Diameter for Enhanced Scale Presence — The 120mm medium OD body features a larger diameter than previous generations, creating a more substantial and visually impressive suspension system that matches the proportions of full-size King shocks.
• 40mm of Suspension Travel — The 40mm travel length provides excellent articulation for navigating rocky terrain and technical obstacles whilst maintaining the compact profile required for popular scale crawler platforms.
• Compact and Lightweight Design — At just 30 grams per shock, these components add minimal weight to your crawler whilst delivering maximum suspension performance and visual impact.

Technical Performance

The RC4WD King Off-Road Dual Spring Shocks represent a significant engineering achievement in scale suspension design, combining premium materials with genuine King Off-Road performance characteristics. The precision-machined billet aluminium bodies deliver exceptional strength-to-weight ratios, whilst the dual spring design enables sophisticated suspension tuning that separates these shocks from basic alternatives. The shock body features a 12.6mm outer diameter with a precision 3.97mm shaft, engineered to provide smooth, consistent performance through compression and extension cycles. The 120mm uncompressed length offers an excellent stroke range for 1/10 scale crawlers, whilst the compressed length of 80mm (3.15 inches) ensures these shocks will fit within tight chassis geometries. The 40mm travel length provides genuine articulation capability, allowing your crawler to maintain tyre contact through significant suspension movement. Each shock weighs just 30 grams, keeping suspension weight minimal to preserve the overall handling characteristics and battery runtime of your build. The steel rod end balls with 6.3mm width and 3mm bore diameter ensure smooth connection to your crawler's chassis whilst maintaining the precision fit and durability expected from licensed King components. The spring assembly features a 16.98mm outer diameter body with 14.8mm inner diameter, providing robust support and excellent spring rate progression for varied terrain. When paired correctly with your crawler's geometry and weight distribution, these shocks deliver predictable, confidence-inspiring suspension action that responds intuitively to driver inputs whilst maintaining tyre contact through aggressive rock crawling.

What's in the Box

• 2x RC4WD King Off-Road Dual Spring Shocks (120mm Medium OD)
• 1x King Decal Sheet for authenticity

Technical Specifications

• Brand: RC4WD
• Model Number: Z-D0067
• Product Type: Dual Spring Shock Absorbers (Pair)
• Suspension Type: Dual Spring Design
• Shock Length (Uncompressed): 120mm / 4.72 inches
• Shock Length (Compressed): 80mm / 3.15 inches
• Travel Length: 40mm / 1.57 inches
• Overall Length: 129.3mm / 5.09 inches
• Shock Body Outer Diameter: 12.6mm / 0.49 inches
• Shock Body Inner Diameter: 14.8mm (spring body)
• Shaft Outer Diameter: 3.97mm / 0.15 inches
• Spring Body Outer Diameter: 16.98mm / 0.66 inches
• Spring Body Inner Diameter: 14.8mm / 0.58 inches
• Rod End Ball Width: 6.3mm / 0.25 inches
• Rod End Ball Lip Diameter: 4.8mm / 0.19 inches
• Rod End Ball Inner Diameter: 3mm / 0.12 inches
• Weight per Shock: 30 grams / 1.05 ounces
• Total Weight (Pair): 60 grams / 2.1 ounces
• Material: Precision-machined billet aluminium (body), steel (rod ends)
• Rod End Type: Steel ball connections
• Licensing: Officially licensed by King Off-Road Shocks
• Design Features: Dual spring system, King branding on top cap and retainer ring
• Suggested Applications: RC4WD Timberwolf Scale Crawler Kit (Z-K0016)
• Compatible Scale: 1/10 scale crawlers

Installation Notes

• Apply blue (medium) thread lock to the bottom shock shaft rod end before installation to prevent loosening during use
• Confirmed compatible with RC4WD Timberwolf Scale Crawler Kit (Bolted Chrome) (Z-K0016 "Disc") for front and rear mounting
• Works with various 1/10 scale crawler platforms including 1/10 Bully 2.2 Comp RTR configurations

Optional Accessories and Replacement Parts

• Smaller Shock Variants: If you need alternative lengths, RC4WD also manufactures 80mm (Z-D0055), 90mm (Z-D0061), 100mm (Z-D0063), and 110mm (Z-D0065) versions of these King shocks
• Rebuild Kit: Rebuild Kit for King Off-Road Dual Spring Shocks (Z-S1263) — for complete internal overhaul and maintenance
• Replacement Shock Shafts: Replacement Shock Shafts for King Dual Spring Shocks (120mm) (Z-S1283) — for damaged shaft replacement
• Top Caps: Cap for Top of King Offroad Shocks (Z-S1280) — replacement caps with King branding
• Spring Retainers: Lower, Center and Threaded Spring Retainer for King Offroad Shocks (Z-S1282) — for spring system adjustment and replacement
• Spring Assortment: 120mm King Off-Road Dual Spring Shocks Spring Assortment (Z-S1293) — multiple spring options for fine-tuning suspension stiffness

Frequently Asked Questions

• Will these King Off-Road shocks fit my scale crawler? — The 120mm medium OD variant is specifically confirmed to be compatible with the RC4WD Timberwolf Scale Crawler Kit (Z-K0016) for both front and rear mounting. However, RC4WD manufactures multiple length variants (80mm, 90mm, 100mm, 110mm, and 120mm) to accommodate different chassis geometries and applications. Before purchasing, verify that your crawler's suspension mounting points match the 4.72-inch uncompressed length and 80mm compressed length of these 120mm shocks. If you're uncertain about compatibility with your specific model, measure your existing suspension points or contact RC Model Shop's expert team for guidance.
• Are these shocks suitable for beginners to RC crawling? — Yes, these shocks are absolutely suitable for both beginners and experienced crawler builders. They are straightforward to install using standard ball end connectors and include clear installation guidance. However, the dual spring tuning capability means experienced builders can extract maximum performance, whilst beginners will find them forgiving and reliable right out of the box. The officially licensed King design ensures you're getting genuine quality regardless of your experience level.
• Why does the dual spring design matter for my RC crawler? — The dual spring system is a game-changer for crawler performance. Unlike single-spring shocks, the dual spring design allows you to adjust suspension stiffness by swapping or combining springs, giving you precise control over how your crawler responds to terrain variations. Softer springs provide better tyre contact on technical rocky sections, whilst stiffer combinations increase stability on flatter terrain. This tunability means these shocks can adapt to your driving style and local terrain conditions, making them significantly more versatile than fixed-rate alternatives.
• What makes these licensed King shocks different from generic shock alternatives? — The key differences lie in precision engineering, materials quality, and authentic real-world design heritage. These shocks are officially licensed from King Off-Road Shocks, meaning the engineering is based on proven real-world shock technology rather than generic RC designs. The precision-machined billet aluminium construction provides superior durability and corrosion resistance compared to cast alternatives or plastic components found on budget shocks. The larger 120mm body diameter and detailed King branding create a more substantial, professional appearance that serious scale builders demand. You're investing in authentic licensed performance components rather than generic imitations.
• Do I need any special tools to install these shocks? — Installation is straightforward using standard RC tools. You'll need a hex wrench to secure the rod ends into your chassis, and blue (medium) thread lock for the bottom shock shaft rod end to prevent loosening during off-road use. The instructions specify using medium-strength thread lock (not permanent threadlock), which allows for future adjustment if needed. No special compression tools or complex assembly is required — these arrive as complete, ready-to-install shock units.
• How do I maintain and care for these King shocks? — The dual spring design makes maintenance straightforward. Regularly inspect the rod ends and body for any signs of damage after intense rock crawling sessions. The optional Rebuild Kit (Z-S1263) allows you to service the internal components if needed, extending the shock lifespan indefinitely. Keep the aluminium bodies clean to prevent corrosion, particularly if using the crawler in wet conditions. The steel rod ends are naturally corrosion-resistant, providing long-term durability without special coatings.
• Can I adjust the suspension stiffness with these shocks? — Yes, that's one of the primary advantages of the dual spring design. RC4WD offers a 120mm King Off-Road Dual Spring Shocks Spring Assortment (Z-S1293) that provides multiple spring options for fine-tuning suspension stiffness. By swapping springs or combining different rates, you can customise the suspension to suit your specific terrain, driving style, and crawler weight distribution. This level of tuning capability is typically found only on high-end competition crawler platforms, making these shocks exceptional value for dedicated enthusiasts.

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 DUAL SPRING SHOCKS (120MM MEDIUM OD) Z-D0067 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.