- Brand: Axial
- Model Number: Z-AXI312006 / AXI312006
- Product Type: Portal Gears
- Scale: 1/18
- Gear Pitch: 48 pitch
- Gear Tooth Configuration: 25T/16T
- Gear Type: Overdrive
- Material: Metal
- Application: Axial 1/18 UTB18 Capra 4WD Unlimited Trail Buggy
- Compatible Models: AXI01002V2, AXI01002, AXI-1750
- Installation Location: Front portal boxes
- Quantity Included: Two gears per set
- Function: Increases steering radius, improves turning response, enhances climbing ability
- Performance Effect: Front tyres spin faster than rear tyres for tighter turning radius
Overview
The Axial 48P Portal Gears Overdrive 25T/16T set is a precision upgrade component designed specifically for the Axial 1/18 UTB18 Capra 4WD Unlimited Trail Buggy. These metal gears represent an essential tuning option for RC enthusiasts looking to enhance their scale rock crawler's performance and handling characteristics. Whether you're an experienced RC car UK hobbyist or someone looking to optimise their existing Capra build, this gear set offers measurable improvements to steering response and climbing capability. Portal boxes have long been recognised as a clever engineering solution in RC rock crawling, and with this overdrive configuration, you gain the flexibility to fine-tune your trail buggy's behaviour in a way that standard gears simply cannot match.
Upgrading to overdriven front portal gears transforms how your 1/18 scale RC crawler navigates challenging terrain and tight turning situations. The engineering principle is straightforward yet effective: by making the front tyres spin slightly faster than the rear, you create a mechanical advantage that helps pull the front of your buggy faster through corners. This results in a significantly tighter turning radius, which is invaluable when navigating the technical sections of rock crawling courses or tackling twisting woodland trails. Beyond turning performance, these gears also contribute to improved climbing ability, allowing your Capra to tackle steeper inclines and more demanding obstacles with greater authority and control.
These are genuine Axial replacement parts manufactured to the same exacting standards as your original UTB18 components. The 25T/16T configuration at 48 pitch represents a carefully calculated gear ratio that balances performance gains with reliability. Two complete gears are supplied in each set, which is exactly what you need to swap out the internal portal gears in your front portal boxes. If you're serious about getting the absolute best from your 1/18 scale RC buggy in the UK market, this is a worthwhile investment in your setup.
Key Features
- 48 Pitch Precision Gears — These gears are manufactured at 48 pitch, a specification that ensures perfect compatibility with your UTB18 portal boxes and maintains the precise meshing geometry your Capra's transmission requires for smooth, reliable operation under load.
- 25T/16T Overdrive Configuration — The overdrive gear ratio makes your front tyres rotate faster than the rear, which mechanically pulls the front end through turns more aggressively, delivering a noticeably tighter turning radius that's essential for technical rock crawling.
- Metal Construction — Unlike plastic alternatives, these gears are manufactured from durable metal, which provides superior strength, longevity and resistance to wear, making them a worthwhile upgrade over standard components for serious trail enthusiasts.
- Improved Steering Response — The overdriven front end creates a more responsive, direct steering feel that allows you to place your RC rock crawler precisely where you want it on narrow tracks and around obstacles, improving your control and performance.
- Enhanced Climbing Ability — The gear configuration doesn't just improve cornering; it also increases your Capra's climbing capability by delivering more aggressive power delivery to the front wheels when tackling steep inclines and vertical obstacles.
- Easy Installation — Portal boxes make gear changes straightforward compared to other transmission designs, meaning you can make this upgrade yourself without specialist tools or expertise, saving you money and getting your Capra performing better quickly.
- Two Gears Per Set — Each purchase includes two complete gears, which is precisely what you need to fully upgrade your front portal boxes, ensuring you have everything required for a complete installation.
- Genuine Axial Component — These are authentic Axial replacement parts listed as compatible with the AXI01002V2, AXI01002, and AXI-1750 Capra models, guaranteeing fitment and reliability.
Technical Performance
The Axial 48P Portal Gears Overdrive 25T/16T set represents a focused engineering upgrade for those who understand the mechanical principles behind RC rock crawling performance. At 48 pitch, these gears maintain tight tolerances and smooth meshing characteristics that are essential for reliable operation in a transmission as sophisticated as the UTB18's portal box system. The metal construction provides significantly greater durability than plastic gears, resisting the cumulative stress and wear that comes from aggressive rock crawling, technical climbing, and competitive trail driving. The 25T/16T ratio is the precise calculation required to deliver the overdrive effect — making front wheel rotation measurably faster than rear rotation — without compromising reliability or creating excessive mechanical stress on other drivetrain components. This balanced approach means you gain genuine performance advantages without the risk of premature gear wear or transmission failure. The gear set integrates seamlessly with the UTB18's existing portal box architecture, a design that Axial pioneered specifically to allow exactly this kind of performance tuning. Installation is straightforward enough for experienced RC enthusiasts to handle themselves, and the improvement in handling feel is immediately noticeable when you take your Capra out on the trail. Whether you're running your Capra casually on local courses or competing in organised rock crawling events across the UK, this upgrade provides measurable benefits to steering precision and obstacle-climbing performance that justify the modest investment.
What's in the Box
- Two 48 pitch metal portal gears (25T/16T overdrive configuration)
Frequently Asked Questions
- What exactly does an overdrive portal gear set do for my UTB18 Capra? — These gears make the front tyres of your Capra rotate faster than the rear tyres, which mechanically pulls the front end through turns more aggressively. This creates a tighter turning radius, making your rock crawler more responsive and nimble on tight trails. Additionally, the increased front wheel speed contributes to better climbing ability when tackling steep obstacles, as the front wheels maintain more aggressive power delivery during inclines.
- Will these gears fit my existing Capra, or do I need other components? — These gears are designed as a direct replacement for the internal portal gears in the front portal boxes of the UTB18 Capra. They will fit the AXI01002V2, AXI01002, and AXI-1750 models. You do not need to purchase additional components — simply remove your existing gears and install these metal alternatives.
- What is the advantage of metal gears over the plastic gears that come standard? — Metal gears offer superior durability and longevity compared to plastic. They resist wear more effectively, maintain tighter tolerances over extended use, and handle the stresses of aggressive rock crawling and technical climbing without degradation. For anyone taking their Capra seriously, metal gears represent a worthwhile upgrade in reliability.
- Are these difficult to install, or do I need professional help? — Portal boxes are specifically designed to make gear changes straightforward. If you're comfortable working on RC vehicles and have basic tools, you can install these yourself. The process is more accessible than swapping gears in other transmission designs, and Axial's engineering makes it possible for enthusiasts to perform this upgrade without specialist equipment or professional assistance.
- How much improvement will I notice in steering and climbing? — The improvement in turning radius is immediately noticeable — your Capra will feel significantly more responsive and agile through corners. The climbing improvement is also measurable, particularly on steep inclines where the increased front wheel speed helps maintain momentum and control. These are not subtle changes; they represent meaningful performance gains that will improve your driving experience on the trail.
- Are these gears suitable for competitive rock crawling? — Yes, these gears are used by RC enthusiasts across the UK for both casual trail driving and competitive rock crawling events. The overdrive configuration is a recognised tuning approach in the rock crawling community, and the metal construction ensures reliability during competitive use.
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 Axial 48P Portal Gears, Overdrive 25T/16T: UTB18 (2) Z-AXI312006 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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