Overview
The RC4WD BULLY 2 KNUCKLE WEIGHTS (Z-S1202) are premium CNC machined suspension components designed specifically for the Bully 2 Competition Crawler front axle. These knuckle weights are essential upgrades for RC crawlers and scale rock crawlers that demand precision engineering and authentic OEM-style installation. Whether you're running your RC crawler UK-wide on demanding terrain or competing in organised events, these weights improve weight distribution and handling characteristics by adding strategic mass to the front axle assembly. Built to RC4WD's exacting standards, they represent a significant upgrade for any serious RC enthusiast looking to enhance their crawler's performance and scale appearance.
Knuckle weights are a fundamental component of modern RC crawler design, providing better weight distribution across the axle assembly and improving traction and stability when navigating challenging obstacles. The Bully 2 Knuckle Weights deliver this functionality whilst maintaining a clean, professional appearance that matches factory RC specifications. For builders and competitors working with the Bully 2 platform, these weights are an essential addition to achieving optimal handling and realistic scale proportions.
RC Model Shop supplies the RC4WD BULLY 2 KNUCKLE WEIGHTS as a complete matched set with all mounting hardware included, making installation straightforward and ensuring perfect fitment to your Bully 2 Competition Crawler Front Axle. This is a genuine RC4WD component, manufactured to the highest standards and backed by our commitment to quality and customer satisfaction.
Key Features
- CNC Machined Construction — Each knuckle weight is precision engineered using CNC machining techniques, guaranteeing consistent dimensions, perfect tolerances and professional finish across all four pieces in the set. This level of manufacturing precision ensures reliable performance and a polished appearance that matches genuine OEM components.
- OEM-Style Fitment — Designed with exact specifications to match factory original equipment dimensions and mounting points, these weights install seamlessly into your Bully 2 crawler without modification or adjustment, delivering that authentic scale appearance that serious RC builders demand.
- Complete Matched Set — The kit includes four knuckle weights, perfectly matched and balanced as a set, ensuring consistent weight distribution across your front axle assembly and eliminating any asymmetry that could affect handling or traction.
- All Mounting Hardware Included — Eight M3 x 8mm black FHCS (flat head cap screws) are provided, eliminating the need to source fasteners separately and guaranteeing you have exactly what you need for a complete, professional installation straight from the box.
- Compact Form Factor — The precisely sized inner and outer diameters combined with optimised thickness create a clean, integrated appearance on your axle assembly whilst providing the weight benefit needed for improved performance on technical terrain.
- Precision Sizing — Clearly defined inner and outer diameter tolerances, combined with accurately positioned screw holes, ensure perfect fit every time with zero guesswork or modification required during installation.
Technical Performance
The RC4WD BULLY 2 KNUCKLE WEIGHTS represent the pinnacle of RC crawler component design. Each weight is manufactured from high-quality materials using CNC precision machining, ensuring dimensional consistency that matches factory specifications exactly. The assembled outer diameter of 1.41 inches (35.9mm) with an inner diameter of 0.63 inches (16mm) creates the perfect interface with your Bully 2 Competition Crawler Front Axle. The 0.45-inch (11.5mm) thickness provides optimal weight distribution without excessive bulk, whilst the 3mm screw holes accommodate the included M3 fasteners perfectly. Each individual weight contributes 0.88 ounces (25 grams) of mass, bringing the total set weight to 3.52 ounces (100 grams) — a significant yet properly balanced addition to your front axle assembly. This weight distribution is critical for RC scale crawlers, improving ground contact, traction in challenging conditions, and the authentic low centre of gravity that defines competitive crawler performance. The engineering behind these weights reflects RC4WD's reputation for manufacturing scale RC components to professional standards, making them an ideal choice for enthusiasts building or upgrading their Bully 2 platform.
What's in the Box
- 4x Bully 2 Knuckle Weights
- 8x M3 x 8mm FHCS Black Cap Screws (Z-S0649)
Frequently Asked Questions
- What is the Bully 2 Knuckle Weights Z-S1202 designed for? — These knuckle weights are specifically engineered for the RC4WD Bully 2 Competition Crawler Front Axle (Z-A0012). They add strategic mass to the front axle assembly to improve weight distribution, traction and handling on challenging RC crawler terrain across the UK and beyond.
- Are all the fasteners included? — Yes, the kit includes all eight M3 x 8mm black flat head cap screws required to mount the four knuckle weights to your front axle. No additional hardware is needed for installation.
- What does CNC machined mean and why does it matter? — CNC machining uses computer-controlled precision tools to manufacture components to exact specifications. This ensures perfect dimensions every time, consistent quality across all four weights in the set, and professional fitment without requiring modification or adjustment. For RC crawlers where precision matters, CNC machining guarantees reliability and performance.
- Will these fit my RC crawler if I don't have a Bully 2 Competition Crawler Front Axle? — These weights are specifically designed for the Bully 2 Competition Crawler Front Axle (Z-A0012). The dimensions and mounting hole sizing are precisely engineered for that axle, so they are not compatible with other axle assemblies without modification.
- How much weight do these add? — The complete set of four knuckle weights totals 3.52 ounces (100 grams), with each individual weight contributing 0.88 ounces (25 grams). This strategic weight addition improves front axle stability and traction without compromising the overall balance of your crawler.
- Is this suitable for beginners? — These are component-level upgrades designed for builders with intermediate to advanced RC crawler experience. If you are new to RC crawlers, we recommend consulting our expert team at RC Model Shop to understand how knuckle weights integrate into your build, as installation requires familiarity with axle assembly procedures.
- How do I install knuckle weights? — Installation involves positioning each weight on the axle assembly and securing them with the included M3 x 8mm cap screws. The precisely machined dimensions ensure accurate fitment, but we recommend following the RC4WD installation guide and ensuring your axle assembly is clean before installation. If you require support, our team at RC Model Shop is happy to advise.
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 BULLY 2 KNUCKLE WEIGHTS Z-S1202 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: RC4WD
- Model Number: Z-S1202
- Product Type: Bully 2 Knuckle Weights
- Manufacturing Method: CNC Machined
- Fitment Style: OEM-Style
- Assembled Outer Diameter: 1.41 inches (35.9mm)
- Assembled Inner Diameter: 0.63 inches (16mm)
- Thickness: 0.45 inches (11.5mm)
- Screw Hole Diameter: 0.12 inches (3mm)
- Individual Weight: 0.88 ounces (25 grams) each
- Total Set Weight: 3.52 ounces (100 grams)
- Quantity in Set: 4 knuckle weights
- Fastener Type: M3 x 8mm FHCS (Flat Head Cap Screw) Black
- Fasteners Included: 8 pieces (2 per weight)
- Fastener Part Number: Z-S0649
- Compatible Axle: Bully 2 Competition Crawler Front Axle (Z-A0012)
- Installation: Bolt-on assembly
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.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
