Overview
The Vitavon Arrma 6S EXB HD Spider Gear/Diff Gear Set For 29mm Diff Case Only is a premium upgrade component designed specifically for owners of high-performance Arrma 6S scale RC vehicles. Whether you run an Arrma Kraton 6S, Mojave 6S, or Notorious 6S EXB, this hardened steel diff gear set represents a significant enhancement to your vehicle's drivetrain durability and performance. This is an essential upgrade for serious RC enthusiasts across the UK who demand reliability and longevity from their competition-grade RC cars and trucks.
Manufactured by Vitavon, a recognised brand for premium RC upgrades, this spider gear set is engineered to withstand the extreme stresses of high-speed bashing and competitive racing. The use of CNC-machined hardened steel ensures that your differential gears can handle powerful 6S LiPo performance without failure, making this an ideal choice for anyone who has experienced gear stripping or differential damage with stock components. If you're running a brushless RC monster truck or RC buggy at 6S power levels, upgrading to these heavy-duty gears is a smart investment in reliability.
This product is specifically engineered for the 29mm differential case only and is not compatible with the larger 31mm case, so careful verification of your vehicle's differential size is essential before purchase. RC Model Shop recommends checking your stock part number (Ar310985) to ensure you're ordering the correct component for your specific model variant.
Key Features
- Hardened Steel CNC Machining — These spider gears are manufactured from hardened steel using precision CNC processes, which creates exceptionally tough and accurate components that resist wear, stripping, and breakage far better than standard plastic or soft metal gears found in stock Arrma differentials.
- 29mm Differential Case Compatibility — Engineered specifically for 29mm diff cases, these gears ensure perfect fitment and engagement with your existing differential housing, delivering smooth and reliable power distribution to your wheels.
- Arrma 6S EXB Optimisation — Designed and tested to work perfectly with the latest Arrma 6S EXB variants, including the Kraton 6S EXB V5 and V6, Mojave 6S, and Notorious 6S EXB V6, giving you confidence that you're buying a component engineered for your specific RC truck or buggy.
- Enhanced Durability — The hardened steel construction dramatically increases the lifespan of your differential gears, meaning fewer replacements and longer intervals between maintenance on your high-performance RC vehicle.
- Performance Under Load — Purpose-built to handle the immense torque and power delivery of modern 6S brushless systems, these gears ensure that power is transmitted efficiently to both wheels without slippage, gear rounding, or differential failure.
Technical Performance
The Vitavon Arrma 6S EXB HD Spider Gear set represents a significant step up in differential technology for serious RC car and truck enthusiasts. Stock Arrma differentials often struggle when paired with high-power 6S LiPo batteries and modern brushless motors, leading to stripped gears and costly damage. By upgrading to CNC-machined hardened steel components, you gain the ability to run aggressive power levels without fear of differential failure. The precision engineering ensures that gear engagement is perfect, minimising backlash and maximising power transfer efficiency. This is particularly important for owners of RC monster trucks, RC buggies, and RC truggy platforms who regularly bash at speed or compete in racing events. The hardened steel material provides superior resistance to the wear patterns that naturally develop in high-performance RC differentials, extending the service life of your drivetrain components significantly. Whether you're running a stock brushless motor or an upgraded high-KV system, these gears are engineered to handle the load without compromise.
What's in the Box
- Vitavon Arrma 6S EXB HD Spider Gear/Diff Gear Set for 29mm Diff Case
What You Need to Complete
- Your existing Arrma 6S vehicle with 29mm differential case (Kraton 6S EXB, Mojave 6S, Notorious 6S EXB, or compatible model)
- Basic RC tools for differential disassembly and reassembly
- Differential lubricant (recommended for optimal performance)
Frequently Asked Questions
- Will these gears fit my Arrma 6S RC truck? — The Vitavon HD Spider Gear set is designed specifically for 29mm differential cases only and is not compatible with 31mm cases. These gears fit Arrma Kraton 6S, Kraton 6S EXB (V5 and V6 variants), Mojave 6S, Notorious 6S EXB V6, Infraction, Felony, Typhon, and Fireteam models. You must verify your vehicle's differential case size and stock part number (Ar310985) before purchasing to ensure compatibility with your specific RC vehicle.
- Why should I upgrade from stock Arrma differential gears? — Stock plastic or soft metal gears in Arrma differentials are prone to stripping and rounding when subjected to high power levels, especially with modern 6S LiPo systems. The Vitavon hardened steel CNC-machined gears are engineered to withstand extreme torque and power without failure, making them essential for anyone running high-performance RC cars and trucks at competitive levels or engaging in serious bashing.
- Are these gears suitable for 6S brushless power levels? — Yes, these gears are specifically designed and tested for use with 6S LiPo batteries and modern brushless motor systems. The hardened steel construction and CNC precision ensure that they can handle the significant torque and power delivery of brushless drivetrains without damage.
- How difficult is installation? — Installing diff gears requires disassembly of your differential case and basic mechanical knowledge. If you're experienced with RC maintenance and tool use, this is a straightforward upgrade. However, if you're new to RC vehicle servicing, we recommend watching instructional videos specific to your model or consulting the RC Model Shop team for guidance before attempting installation.
- Will these gears improve my RC truck's performance? — These gears don't increase speed directly, but they provide more reliable power transfer and eliminate the slippage and wear associated with damaged stock gears, meaning your RC car or truck will perform more consistently and with better traction control throughout their lifespan.
- Can I use these with a 31mm differential case? — No, these gears are engineered exclusively for 29mm differential cases and are not compatible with 31mm cases. Using them with an incorrect case size will result in poor fitment and potential damage to both the gears and your differential housing.
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 Vitavon Arrma 6S EXB HD Spider Gear/Diff Gear Set For 29mm Diff Case Only 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: Vitavon
- Model Number: VITARA310985 / Ar310985 / ARA310985
- Product Type: Spider Gear/Differential Gear Set
- Material: Hardened Steel
- Manufacturing Method: CNC Machined
- Colour: Black
- Differential Case Size: 29mm only
- Not Compatible With: 31mm Differential Case
- Compatible Vehicle Models: Arrma Kraton 6S, Arrma Kraton 6S EXB V5, Arrma Kraton 6S EXB V6, Arrma Mojave 6S, Arrma Notorious 6S EXB V6, Arrma Infraction (ARA7615V2T1 / ARA7615V2T2), Arrma Felony (ARA7617V2T1 / ARA7617V2T2), Arrma Typhon (ARA8606V5), Arrma Fireteam (ARA7618T1 / ARA7618T2)
- Power Rating: 6S LiPo Compatible
- Performance Category: High-Duty / Heavy-Duty Upgrade
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.
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- 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.
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