- Brand: ARRMA
- Model Number: Z-ARA311045
- Product Type: Pinion Gear
- Number of Teeth: 25-26T
- Gear Pitch: Mod 1
- Bore Type: Safe-D8
- EAN: 5052127038584
- RRP: £19.99
Overview
The ARRMA 25T Mod1 Safe-D8 Pinion Gear Z-ARA311045 is an essential replacement component for RC enthusiasts and competitive racers who demand precision engineering and reliability in their RC car setups. Whether you're running an ARRMA RC car UK-wide or competing in serious racing events, this pinion gear is designed to deliver consistent performance and durability. As a direct replacement or upgrade component, this pinion gear ensures your RC vehicle maintains optimal drivetrain efficiency and power delivery to the wheels.
Pinion gears are critical components in any RC car's drivetrain system, directly affecting acceleration, top speed and overall handling characteristics. The ARRMA 25T Mod1 Safe-D8 Pinion Gear is engineered to the highest standards with precision manufacturing that ensures smooth engagement with your spur gear and minimal backlash during operation. Whether you're a weekend basher enjoying your brushless RC car on the track or a serious competitor pushing your vehicle to its limits, having a quality pinion gear that matches your driving style and motor setup is absolutely essential for peak performance.
This genuine ARRMA component represents the manufacturer's commitment to quality and performance. RC car UK buyers trust ARRMA products because they're built to withstand the demands of serious RC racing and bashing. The Safe-D8 bore specification ensures compatibility with modern ARRMA motor shafts, making installation straightforward for experienced RC enthusiasts.
Key Features
- 25-26 Teeth Configuration — This tooth count is carefully engineered to provide the ideal balance between acceleration and top speed for ARRMA vehicles, allowing you to optimise your gearing ratio based on your specific motor choice and racing conditions, whether on-road or off-road.
- Mod 1 Gear Pitch — Mod 1 is the international standard gear pitch specification that ensures perfect meshing compatibility with Mod 1 spur gears, guaranteeing smooth power transmission without noise, vibration or premature wear during aggressive driving sessions.
- Safe-D8 Bore Design — The Safe-D8 bore is ARRMA's proprietary shaft interface that provides secure engagement with your brushless motor shaft, preventing slippage during hard acceleration and ensuring reliable power delivery in both racing and bashing applications.
- Precision Engineering — Every tooth is machined to exacting tolerances using advanced manufacturing techniques, ensuring consistent gear engagement, reduced backlash and extended component lifespan even under the stress of competitive RC racing.
- Direct OEM Replacement — As an official ARRMA component, this pinion gear is the genuine article specified for ARRMA RC cars, guaranteeing perfect fitment and performance characteristics that aftermarket alternatives simply cannot match.
Technical Performance
The ARRMA 25T Mod1 Safe-D8 Pinion Gear represents the pinnacle of drivetrain component engineering for modern RC vehicles. With 25 to 26 teeth and Mod 1 pitch specifications, this gear is designed to work seamlessly with ARRMA's range of brushless motors and spur gears. The Safe-D8 bore interface is specifically engineered for modern ARRMA brushless motor shafts, providing a secure fit that eliminates the risk of slippage under load. The precision manufacturing ensures minimal radial runout and perfect tooth engagement with your spur gear, which translates directly to smoother acceleration, more responsive handling and improved overall drivetrain efficiency. This component is manufactured to the exacting standards expected from a leading RC manufacturer, using materials and processes that ensure durability and reliability whether you're racing competitively or enjoying casual bashing sessions. The gear pitch and tooth count have been carefully calculated to provide optimal performance across ARRMA's vehicle range, offering the perfect combination of acceleration response and top speed capability depending on your specific motor configuration and driving style.
What's in the Box
- ARRMA 25T Mod1 Safe-D8 Pinion Gear
Frequently Asked Questions
- What is a pinion gear and why is it important in my RC car? — The pinion gear is a small gear that mounts directly onto your brushless motor shaft and meshes with the larger spur gear in your RC car's drivetrain. It's absolutely critical because it directly determines your vehicle's gearing ratio, which affects acceleration, top speed and overall performance characteristics. Upgrading or replacing your pinion gear allows you to fine-tune your RC car's performance for different track conditions, motor sizes or driving styles.
- Will this pinion gear fit my ARRMA RC car? — The ARRMA 25T Mod1 Safe-D8 Pinion Gear Z-ARA311045 is an official ARRMA component designed specifically for ARRMA vehicles equipped with Safe-D8 motor shaft interfaces. Before purchasing, verify that your vehicle uses the Safe-D8 shaft specification and that you require a 25-26 tooth pinion gear. If you're unsure, consult your vehicle's manual or contact us at RC Model Shop for compatibility advice.
- What's the difference between the tooth count and gear pitch? — The tooth count (25-26 teeth) determines your gearing ratio when meshed with your spur gear, directly affecting speed and acceleration characteristics. The gear pitch (Mod 1) is the international standard measurement that ensures compatible meshing with Mod 1 spur gears. Both specifications must match correctly for proper operation, which is why choosing genuine OEM components like this ARRMA pinion gear is so important.
- Can I use this pinion gear with different motor sizes? — Yes, pinion gears are typically motor-size independent. However, the overall gearing ratio of your vehicle depends on both the pinion tooth count and your spur gear tooth count combined with your motor's KV rating. If you're changing motor sizes significantly, you may want to adjust your pinion teeth to maintain optimal performance, which is where consulting an RC expert becomes valuable.
- How often should I replace my pinion gear? — With proper maintenance and lubrication, quality pinion gears can last many hours of use. Replace your pinion gear if you notice visible wear, chipped teeth, difficulty engaging with the spur gear, or if you're upgrading your drivetrain for better performance. Regular inspection during maintenance is recommended for competitive RC racing.
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 25T Mod1 Safe-D8 Pinion Gear Z-ARA311045 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.
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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- 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.
