VITARA330807

Overview

The VITAVON CNC Alu7075 Front Knuckle is a premium upgrade component designed specifically for the Arrma Granite Grom 1/18 and Typhon Grom 1/18 scale RC buggies and crawlers. Whether you're a dedicated RC enthusiast looking to enhance your Arrma Grom's performance or a UK-based basher seeking to improve durability and handling on your favourite small-scale RC car, these CNC-machined aluminium front knuckles offer a significant step up from stock components. Built by VITAVON, a recognised manufacturer of high-quality RC upgrade parts for electric RC buggies and crawlers, this component combines precision engineering with superior materials to deliver enhanced strength and reliability where it matters most — at the front end geometry of your vehicle.

Front knuckles are critical suspension components that connect your RC car's steering arms, front wheels and suspension geometry. The stock plastic knuckles fitted to the Arrma Granite Grom and Typhon Grom can suffer from flex and wear under aggressive driving, leading to inconsistent handling, reduced steering precision and potential breakage. This VITAVON upgrade replaces that weakness with rigid, CNC-machined 7075 aluminium construction that maintains perfect geometry through jumps, hard cornering and technical crawling. Available in four striking colours — Silver, Blue, Red and Gold — these knuckles let you customise your RC buggy's appearance whilst dramatically improving its structural integrity and on-track feel.

If you're shopping for RC parts in the UK and own an Arrma Granite Grom or Typhon Grom 1/18, this is a foundational upgrade that belongs on your build list. The enhanced bearing specification and premium material choice make it an investment in longevity and consistent performance that will serve your RC car through hundreds of bashings and crawling sessions.

Key Features

• CNC-Machined 7075 Aluminium Construction — These front knuckles are manufactured from aerospace-grade 7075 aluminium using computer numerical control (CNC) precision machining, ensuring perfect dimensional accuracy and superior strength compared to plastic stock components, which makes them dramatically more durable for serious RC car enthusiasts in the UK.
• Oversized Outer Bearing Specification — VITAVON has upgraded the front knuckle bearing specification from the stock 11×7×3mm size to premium 13×7×4mm oversized bearings, which distribute loads more effectively, reduce friction, extend bearing life and improve steering responsiveness on your RC buggy or crawler.
• Four Premium Colour Options — Customise your Arrma Grom's appearance with your choice of Silver, Blue, Red or Gold anodised finish, allowing you to match your RC car's overall aesthetic whilst maintaining the structural benefits of premium aluminium construction.
• Complete Assembly Hardware Included — Every set includes all necessary screws and fasteners required for installation, so you can upgrade your Arrma Granite Grom or Typhon Grom without hunting for additional hardware or making additional purchases.
• Direct Fitment for Grom Series — These front knuckles are engineered specifically for the Arrma Granite Grom 1/18 and Typhon Grom 1/18 platforms, guaranteeing perfect fit, suspension geometry compatibility and immediate performance improvements without any modification or adjustment required.
• Precision Engineering for Consistency — CNC machining delivers perfectly identical left and right knuckles with no tolerance variation, ensuring your RC car maintains consistent handling characteristics, steering response and suspension geometry throughout your driving sessions.

Technical Performance

These front knuckles represent a substantial engineering upgrade over factory plastic components. The choice of 7075 aluminium is deliberate — this alloy is recognised in engineering and aerospace applications for its exceptional strength-to-weight ratio and resistance to fatigue, making it ideal for the repeated stress and impact that RC buggies and crawlers experience during bashing and technical crawling. The CNC machining process removes material only where it is not structurally necessary, creating a component that is simultaneously lighter than solid billet and stronger than pressed or injection-moulded alternatives. The oversized 13×7×4mm bearing specification is a key performance differentiator; the larger outer diameter and increased width distribute loads across a greater surface area, reducing stress concentration and extending bearing lifespan under the demanding conditions experienced by RC car owners. The anodised finish on all colour variants provides corrosion resistance and a professional appearance that complements modern RC buggies and crawlers. Build quality is exceptional throughout, with smooth CNC surfaces, precision-machined bearing bores and accurate hole sizing for fasteners. These knuckles are engineered to work seamlessly with the Arrma Grom suspension geometry, maintaining perfect camber, caster and kingpin angles for optimal handling across rough terrain, high-speed circuits and technical crawling obstacles.

What's in the Box

• 1 pair of VITAVON CNC Alu7075 front knuckles (left and right)
• Complete assembly screws and fasteners
• Installation ready — no additional hardware required

Frequently Asked Questions

• Will these front knuckles fit my Arrma Granite Grom 1/18 or Typhon Grom 1/18? — Yes, these knuckles are engineered specifically for both the Arrma Granite Grom 1/18 and Typhon Grom 1/18 platforms. They are direct replacements for the stock plastic knuckles and will drop straight onto your RC buggy without any modification or adjustment to other suspension components.
• What's the benefit of upgrading from plastic to aluminium knuckles? — Plastic front knuckles flex under load, which causes your RC car's steering geometry to shift, leading to inconsistent handling and potential breakage during aggressive driving. These CNC-machined 7075 aluminium knuckles are rigid, maintain perfect geometry under all conditions, last significantly longer and provide noticeably improved steering precision and responsiveness. They're an investment in both performance and durability.
• Why are the bearings oversized and does this really matter? — Stock Arrma Grom knuckles use 11×7×3mm bearings, but VITAVON has upgraded to 13×7×4mm size. Larger bearings distribute loads across a greater surface area, which reduces stress on individual bearing rolling elements, extends bearing lifespan, reduces friction and improves overall steering feel. For serious RC enthusiasts, this is a meaningful upgrade that translates to better handling and longer service intervals between maintenance.
• Are these knuckles compatible with the Arrma Mojave Grom? — No, these knuckles are designed specifically for the Arrma Granite Grom 1/18 and Typhon Grom 1/18. They will not fit the Arrma Mojave Grom, which uses different suspension geometry and component specifications. Always verify compatibility before purchasing upgrade parts for your RC car.
• Which colour should I choose? — This is purely a matter of personal preference and aesthetics. All four colours — Silver, Blue, Red and Gold — are manufactured to identical specifications and performance standards. Choose the colour that best matches your RC car's overall appearance or your personal style. Silver offers a clean, professional look; Blue is a popular choice for coordinate with many Arrma Grom colour schemes; Red provides a striking, aggressive appearance; and Gold offers a premium, distinctive finish.
• Do I need any special tools or technical knowledge to install these knuckles? — Installation is straightforward for anyone with basic RC mechanical experience. You'll need standard RC tools including a hex key or screwdriver set to remove stock knuckles and install the new VITAVON components. The included fasteners ensure you have everything needed. If you're new to RC car maintenance, consult your Arrma Grom manual or seek guidance from experienced RC enthusiasts in the UK RC community.
• How long will these knuckles last? — 7075 aluminium is extremely durable and resistant to fatigue, so these knuckles should last for many years of regular use. The bearings will eventually wear and require replacement, but the aluminium knuckles themselves will not degrade. Proper maintenance — keeping bearings clean and lubricated, avoiding extreme impacts, and regular inspection — will maximise service life.
• Are these knuckles suitable for beginners? — Absolutely. Whilst these are premium upgrade parts, they are a direct replacement for stock knuckles and require no additional knowledge or skill to install. Beginners benefit from improved durability and handling precision, which actually makes them an excellent first upgrade for any Arrma Grom 1/18 owner looking to enhance their RC car's performance and reliability.

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 CNC Alu7075 Front Knuckle For Arrma Granite Grom 1/18 & Typhon Grom1/18 - Vitavon VITARA330807 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.