Z-S1941

Overview

The RC4WD Narrow Stamped Steel Wheel Pin Mount 5-Lug for 1.9" Wheels (Z-S1941) is a precision-engineered solution designed specifically for RC enthusiasts in the UK who demand scale accuracy and performance from their crawler and off-road builds. This CNC-machined billet aluminium hub set represents a significant upgrade over standard wheel hubs, offering a refined approach to narrowing track width and achieving that authentic, scale appearance that serious RC car builders strive for. Whether you're working on a Scale RC crawler, a competition-grade build, or simply want to enhance the visual authenticity of your 1.9" wheeled RC vehicle, these wheel hubs deliver both functionality and aesthetic appeal.

The Z-S1941 is engineered to reduce the offset of RC4WD steel wheels by approximately 1.8 millimetres compared with standard stock wheel hubs, making it an essential upgrade for builders seeking tighter, more proportional wheel positioning on their scale models. This modest but crucial dimensional change transforms the overall appearance and handling characteristics of your RC car, creating a more realistic stance that mirrors real-world vehicle proportions. The durability and precision of these hubs make them an excellent choice for both experienced RC builders and those serious about upgrading their existing collection with quality components.

RC Model Shop stocks genuine RC4WD components, and we're proud to offer this professional-grade wheel hub upgrade at competitive UK pricing. With decades of combined experience in the RC car UK hobby, our team understands exactly why these precision hubs matter to discerning builders.

Key Features

• CNC-Machined Billet Aluminium Construction — These wheel hubs are manufactured using precision CNC machinery from solid billet aluminium, ensuring exceptional accuracy and consistency in dimensions. This manufacturing process eliminates material imperfections and guarantees that each hub meets RC4WD's strict engineering tolerances, which is critical for proper wheel fitment and optimal performance on challenging terrain.
• Black Anodised Finish — The durable black anodised coating provides both aesthetic appeal and functional protection against corrosion and wear. This professional-grade finish withstands extended use in outdoor conditions, including exposure to moisture, dirt, and UV radiation, whilst maintaining its clean, scale appearance over the long term. The anodised surface is significantly more durable than painted alternatives and requires minimal maintenance.
• Track Width Narrowing of 1.8mm — By reducing the wheel offset by 1.8 millimetres compared with RC4WD's standard wheel hub, these hubs create a noticeably tighter stance that improves the scale appearance of your model and can positively affect handling characteristics. This precise reduction in track width creates more realistic proportions and allows builders to achieve more authentic axle geometry on their scale crawler or competition vehicle.
• Lightweight Design — Each hub weighs just 2.5 grams, contributing to reduced unsprung mass which can improve suspension performance and handling response. The lightweight aluminium construction minimises rotational inertia at the wheels, allowing your RC vehicle to respond more quickly to terrain changes and suspension input.
• Precision Wheel Mounting — Designed specifically for 1.9" wheels with 5-lug mounting patterns, these hubs offer exact fitment with zero play or wobble. The engineering ensures that your wheels sit absolutely square to the axle, maintaining consistent contact with the ground and improving traction and stability across varied terrain.
• Complete Hardware Package — Included with each set are all necessary fasteners and mounting hardware, including stainless steel socket cap screws and precision-engineered nuts. This comprehensive package ensures you have everything needed for immediate installation without sourcing additional parts.

Technical Performance

The RC4WD Z-S1941 wheel hubs represent a significant step up in build quality and precision engineering for scale RC vehicles and crawlers. The CNC-machined billet aluminium construction ensures dimensional accuracy to within tight tolerances, which is essential for maintaining proper wheel geometry and axle alignment on serious off-road and competition builds. The black anodised finish provides a hard, protective coating that resists corrosion and maintains its appearance through countless hours of outdoor use, including exposure to wet conditions, mud, and abrasive terrain. Each hub has an outside diameter of 23.0 millimetres, a centre hole outside diameter of 4.2 millimetres, and a width of 6.5 millimetres, making them compatible with all RC4WD 1.9" steel wheels in the recommended compatibility list. The 2.5-gram weight per hub represents an excellent balance between structural integrity and minimised unsprung mass, contributing to improved suspension response and overall vehicle handling. This is professional-grade engineering designed for builders who understand that precision components translate directly into better performance and longevity.

What's in the Box

• 4x Wheel Hex Hub Brake Discs
• 20x M2.5 x 10mm Steel Flat Head Socket Cap Screws
• 20x Regular M2.5 Black Nuts

Frequently Asked Questions

• Which 1.9" RC4WD wheels are compatible with the Z-S1941 hub? — The Z-S1941 is specifically designed for use with RC4WD 1.9" steel wheels. Compatible models include the Z-W0001, Z-W0127, Z-W0129, Z-W0242, Z-W0243, and Z-W0244. These wheels feature the 5-lug mounting pattern required for these hubs. Always verify your wheel model number before purchasing to ensure compatibility.
• Will these hubs work with my Axial SCX10 or SCX10 II? — No, these hubs are not recommended for Axial SCX10 and SCX10 II axles due to differences in axle thread fitment. The thread depth on Axial axles differs from RC4WD axles, and attempting to use these hubs on Axial axles may cause fitment issues. Additionally, mounting on Axial axles may require washers or spacers to achieve proper fitment, which could compromise the intended design benefits. For Axial-based builds, we recommend using hubs specifically engineered for your axle system.
• How much narrower will my RC crawler look with these hubs? — These hubs narrow the offset by 1.8 millimetres compared with RC4WD's standard wheel hub. While this may seem modest in absolute terms, this reduction creates a noticeably tighter, more proportional stance when viewed on your finished model. The visual difference is particularly apparent on scale crawlers where accurate proportions contribute significantly to the overall appearance and authenticity of the build.
• Are these hubs suitable for scale competition builds? — Yes, absolutely. The CNC-machined billet aluminium construction, tight tolerances, and durable anodised finish make these hubs excellent for serious scale competition builds. The precision engineering ensures consistent performance across multiple runs, and the lightweight design contributes to improved handling characteristics that can benefit competitive crawling and off-road driving.
• What size are the mounting holes and fasteners? — The hubs use M2.5 fasteners, with M2.5 x 10mm steel flat head socket cap screws and corresponding M2.5 black nuts provided. The centre hole outer diameter is 4.2 millimetres, designed to fit RC4WD axle shafts precisely. These specifications ensure secure mounting with zero play.
• How much do these hubs weigh and will they affect my vehicle balance? — Each hub weighs 2.5 grams, for a total of 10 grams per complete set of four. This lightweight construction actually improves vehicle balance and handling by reducing unsprung mass at the wheels. The reduction in rotating mass allows your suspension to respond more quickly to terrain inputs, which can improve traction and control on challenging courses.

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 NARROW STAMPED STEEL WHEEL PIN MOUNT 5-LUG FOR 1.9" WHEELS Z-S1941 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.