This Metal Axle and Hex Set provides an ideal upgrade for your ARRMA vehicle.
Features
Pre-Assembled front driveshafts for easy fit
Anodized aluminum clamping wheel hexes for great looks and extreme durability
12mm hex size allows fit of a wide range of wheel/tire sets
Includes
2 x Front universal joint driveshafts
2 x Rear stub axles
4 x Clamping wheel hexes
4 x Locking grub screws
4 x Drive pins
4 x M4 Wheel nuts
- Part Number: Z-ARA311198
- Manufacturer: ARRMA
- Product Type: Metal Axle & Hex Set
- Tune-Up Category: Transmission
- Hex Size: 12mm
- Material: Metal (anodised aluminium hexes)
- Components Included: 2 x front universal joint driveshafts (pre-assembled), 2 x rear stub axles, 4 x clamping wheel hexes, 4 x locking grub screws, 4 x drive pins, 4 x M4 wheel nuts
- Compatible With: ARRMA 1/16 GORGON GROM 4X4 RTR (Yellow, Bronze, Red), ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR (Blue/Red, Green, Red), ARRMA 1/16 QUAKE GROM 4X4 RTR Brushed Monster Truck (Purple, Green, Red), ARRMA 1/14 TYPHON GROM 223S BLX 4X4 (Blue, Red), ARRMA 1/14 TYPHON GROM MEGA 380 Brushed 4x4 Buggy RTR (Red/White, Blue/Silver)
- EAN: 5052127047050
Overview
The ARRMA Metal Axle & Hex Set for GROM is a premium upgrade component designed for RC enthusiasts looking to enhance their vehicle's drivetrain performance and durability. Whether you're running an ARRMA 1/16 GORGON GROM, 1/18 GRANITE GROM, 1/14 TYPHON GROM, or 1/14 QUAKE GROM monster truck or buggy, this metal axle and hex set provides a significant step up from standard plastic components. Built with precision-engineered metal construction and anodised aluminium clamping wheel hexes, this upgrade delivers both functional performance improvements and a more professional appearance to your ready to run RC car or bashful off-road truck.
This is an ideal upgrade for RC car UK enthusiasts who want to improve the reliability and longevity of their ARRMA GROM-series vehicles without needing to perform complicated modifications. The pre-assembled front driveshafts make installation straightforward, whilst the anodised aluminium hexes provide extreme durability for both casual weekend bashing and more serious driving. The 12mm hex size offers tremendous flexibility, allowing you to fit a wide range of wheel and tyre sets to suit your driving style and terrain preferences.
Whether you're new to RC hobby vehicles or a seasoned basher, the ARRMA Metal Axle & Hex Set represents a worthwhile investment in your vehicle's longevity and performance. The combination of metal construction, professional-grade anodising, and universal compatibility makes this one of the most practical upgrades available for GROM platform owners in the UK RC market.
Key Features
- Pre-Assembled Front Driveshafts — The front universal joint driveshafts arrive fully assembled and ready to fit, eliminating the need for complicated assembly procedures and allowing you to get back to driving faster. This is particularly valuable for beginners who may find drivetrain assembly intimidating.
- Anodised Aluminium Clamping Wheel Hexes — These aren't just functional components; the anodised aluminium construction provides great looks whilst delivering extreme durability that far exceeds plastic alternatives. The anodising process creates a protective oxide layer that resists corrosion, scratches, and wear, making these hexes suitable for harsh environments and extended use.
- 12mm Hex Size — The universal 12mm hex size allows you to fit a wide range of wheel and tyre sets from various manufacturers, giving you complete flexibility to customise your GROM's appearance and performance characteristics without worrying about compatibility issues.
- Metal Construction Throughout — Beyond the hexes, the entire axle and drivetrain components in this set utilise metal construction rather than plastic, delivering superior strength and reliability. Metal components transmit power more efficiently and withstand the stresses of high-speed driving and impact with significantly greater durability than their plastic counterparts.
- Locking Grub Screws Included — The inclusion of premium locking grub screws ensures your hexes stay securely fastened to the axles during driving, preventing the loosening that can occur with standard screws, especially during aggressive cornering or jumping.
- Drive Pins and Wheel Nuts — This comprehensive set includes everything needed for a complete installation, with drive pins ensuring positive power transmission and M4 wheel nuts providing secure wheel retention without requiring additional purchases.
Technical Performance
The ARRMA Metal Axle & Hex Set represents a significant engineering upgrade over standard plastic drivetrain components. The metal construction throughout the axle assembly provides superior torsional rigidity and strength, essential for reliable power transmission in high-performance RC vehicles. The front universal joint driveshafts are engineered to maintain consistent joint angles during suspension articulation, ensuring smooth power delivery regardless of terrain conditions. The anodised aluminium hexes offer exceptional wear characteristics; whilst plastic hexes can strip or deform under repeated loading, the aluminium construction maintains its dimensional accuracy across thousands of driving cycles. The 12mm hex specification is the industry standard for small-scale RC vehicles, ensuring compatibility with a vast selection of aftermarket and OEM wheels available in the UK RC market. The locking grub screw design prevents fastener loosening through micro-vibrations that occur during driving, a common failure point in stock setups. The inclusion of hardened steel drive pins ensures positive power transmission without slippage, critical for maintaining accurate throttle response and control. This upgrade is particularly valuable for owners who regularly bash their GROM in challenging terrain or who participate in organised RC events where component reliability is paramount.
What's in the Box
- 2 x Front universal joint driveshafts (pre-assembled)
- 2 x Rear stub axles
- 4 x Anodised aluminium clamping wheel hexes
- 4 x Locking grub screws
- 4 x Drive pins
- 4 x M4 wheel nuts
Compatible Vehicles
The ARRMA Metal Axle & Hex Set is compatible with the following GROM-series vehicles:
- ARRMA 1/16 GORGON GROM 4X4 RTR (all colour variants: Yellow, Bronze, Red)
- ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR (Blue/Red, Green, Red variants)
- ARRMA 1/16 QUAKE GROM 4X4 RTR Brushed Monster Truck (Purple, Green, Red variants)
- ARRMA 1/14 TYPHON GROM 223S BLX 4X4 Buggy (with and without battery/charger, Blue and Red variants)
- ARRMA 1/14 TYPHON GROM MEGA 380 Brushed 4x4 Buggy RTR (Red/White, Blue/Silver variants)
Frequently Asked Questions
- Is the ARRMA Metal Axle & Hex Set suitable for beginners? — Yes, absolutely. Whilst this is technically an upgrade component, the pre-assembled front driveshafts mean installation is straightforward even for newcomers to RC. The set comes complete with all necessary fasteners, so you won't need to hunt for additional parts. If you're relatively new to RC car maintenance and upgrades, this is one of the most accessible drivetrain improvements you can make.
- Will this metal axle set fit my GROM? — This set is specifically engineered for ARRMA GROM-series vehicles, including the 1/16 GORGON GROM, 1/18 GRANITE GROM, 1/16 QUAKE GROM, and 1/14 TYPHON GROM models. Verify your specific model number against the compatibility list provided, as GROM components are not universally compatible across all ARRMA platforms.
- What's the advantage of metal axles over the standard plastic parts? — Metal axles and hexes provide multiple advantages: superior durability that withstands more impacts and stress cycles, reduced risk of stripping or deformation, better power transmission efficiency, and a more professional appearance. If you drive frequently or in challenging conditions, the longevity gained typically justifies the upgrade cost within the first season of use.
- Can I use different wheel sizes with the 12mm hexes? — The 12mm hex size is industry-standard for small-scale RC vehicles, making it compatible with wheels from numerous manufacturers. However, wheel offset, width, and tyre compound will affect how your vehicle handles. The hexes themselves will accommodate a wide range of wheel styles without fitment issues.
- Do I need any tools to install this set? — You'll need basic hex keys (Allen wrenches) appropriate for the grub screws and wheel nuts, plus potentially a small screwdriver. The pre-assembled driveshafts minimise the tools and expertise required compared to building components from scratch. Detailed installation instructions are recommended for first-time users.
- How does this compare to other aftermarket drivetrain upgrades? — The ARRMA Metal Axle & Hex Set is the manufacturer's official upgrade option, engineered specifically for GROM platform compatibility and performance characteristics. Genuine ARRMA components integrate seamlessly with your vehicle's existing systems and are supported by comprehensive customer service and warranty coverage.
- Will this upgrade affect my vehicle's speed or performance? — The primary benefit is improved durability and reliability rather than increased speed. However, by reducing drivetrain losses through more efficient power transmission and eliminating flex in plastic components, you may experience marginally improved acceleration response and more consistent performance across multiple driving sessions.
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 ARRMA Metal Axle & Hex Set: GROM Z-ARA311198 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.
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