- Brand: ARRMA
- Model Number: Z-ARA311092
- EAN: 5052127041041
- Product Type: CNC Steel Pinion Gear
- Scale: 1/8
- Tooth Count: 30T
- Gear Pitch: 0.8 Modulus
- Bore Diameter: 3.2mm (1/8 inch)
- Material: CNC Steel
- Manufacturing Method: CNC Machined
- Compatibility: ARRMA 1/8 scale vehicles with 0.8 modulus gearing
- RRP: £10.99
- Stock Status: Available to Order
Overview
The ARRMA 30T 0.8Mod 1/8 inch Bore CNC Steel Pinion Gear (Z-ARA311092) is a precision-engineered replacement component designed for serious RC enthusiasts in the UK who demand reliability and performance from their 1/8 scale electric RC cars. This CNC-machined steel pinion gear is an essential spare part for ARRMA RC vehicles, offering the durability and precision required for competitive racing, weekend bashing, or extended play sessions. Whether you're upgrading your existing setup or replacing worn components, this pinion gear delivers the quality you'd expect from an authorised ARRMA dealer.
Built from hardened CNC steel, this pinion gear has been manufactured to exact tolerances to ensure smooth meshing with spur gears and optimal power transmission throughout your RC drivetrain. The 30-tooth configuration makes this a versatile choice for RC car enthusiasts who want to fine-tune their vehicle's acceleration and top speed characteristics. As a critical drivetrain component, having a quality spare pinion gear on hand ensures your RC car UK setup remains race-ready at all times.
RC Model Shop stocks genuine ARRMA spare parts and components to keep your brushless or brushed RC vehicles running at peak performance. If you're building a custom RC setup, maintaining a fleet of bashers, or competing in organised RC racing events across the UK, this CNC steel pinion gear is a genuine investment in your hobby.
Key Features
- CNC Steel Construction — Manufactured from hardened CNC steel, this pinion gear offers superior durability and wear resistance compared to softer materials, ensuring extended lifespan even under the demands of aggressive driving and competitive use.
- 30-Tooth Configuration — The 30-tooth count provides a balanced setup for 1/8 scale RC cars, allowing you to optimise acceleration versus top speed depending on your vehicle's motor and gearing preferences.
- 0.8 Modulus Pitch — The 0.8 Mod gear pitch is the standard specification for ARRMA 1/8 scale vehicles, ensuring perfect compatibility with matching spur gears and hassle-free installation without modification.
- 3.2mm Bore Diameter — The 1/8 inch bore (3.2mm) is precisely machined to fit standard 1/8 scale RC car motor shafts, providing a secure fit that eliminates slippage and ensures reliable power delivery.
- Precision CNC Machining — Each gear tooth is machined to exact specifications, guaranteeing smooth engagement with your spur gear, reduced noise during operation, and improved overall drivetrain efficiency across your RC setup.
- Genuine ARRMA Component — As an official ARRMA spare part, you can be confident this pinion gear meets all manufacturer specifications and quality standards, protecting your investment in your RC car UK.
Technical Performance
The ARRMA 30T 0.8Mod 1/8 inch Bore CNC Steel Pinion Gear is engineered for performance and longevity in demanding RC applications. The 0.8 modulus pitch is the industry standard for 1/8 scale brushless and brushed RC cars, meaning this gear integrates seamlessly with ARRMA's comprehensive drivetrain ecosystem. The 30-tooth count sits in the mid-range of ARRMA's pinion gear lineup, providing a balanced compromise between acceleration and top speed—ideal for drivers who want versatility in their gearing options without extreme trade-offs. The 3.2mm bore diameter accommodates standard 1/8 scale motor shafts, whilst the hardened CNC steel material resists the wear and tear that comes from continuous use, whether you're running 2S, 3S, or higher voltage LiPo battery setups. The precision machining ensures minimal backlash and smooth gear meshing, which translates to efficient power transmission from motor to wheels, reduced drivetrain heat generation, and improved overall reliability. This pinion gear is suitable for all ARRMA 1/8 scale RC vehicles including buggies, truggy platforms, and other models that use 0.8 modulus gearing, making it an essential spare part for any serious RC enthusiast in the UK.
What's in the Box
- 1x ARRMA 30T 0.8Mod 1/8 inch Bore CNC Steel Pinion Gear
What You Need to Complete
- An ARRMA 1/8 scale RC vehicle with 0.8 modulus gearing system
- Basic tools including a hex key or pinion gear puller (depending on your vehicle's design)
- A compatible spur gear to mesh with this pinion
Frequently Asked Questions
- What ARRMA RC cars use this 30T 0.8Mod pinion gear? — This pinion gear is designed for all ARRMA 1/8 scale vehicles that utilise 0.8 modulus gearing, including their range of buggies, truggies, and monster trucks. Check your vehicle's manual or contact RC Model Shop to confirm compatibility with your specific model before purchasing.
- Why would I need to replace my pinion gear? — Pinion gears wear over time, especially under heavy use, aggressive acceleration, or if your vehicle experiences crashes or collisions that damage drivetrain components. Replacing a worn pinion gear restores smooth power delivery, reduces noise, improves efficiency, and prevents damage to the spur gear. Having a spare on hand is smart maintenance for any serious RC car enthusiast in the UK.
- What is the difference between the 30T and other tooth counts like 27T, 28T, or the 19T options? — The tooth count directly affects your vehicle's gearing ratio and performance characteristics. Lower tooth counts (such as 19T or 21T) provide faster acceleration but lower top speed, whilst higher tooth counts (such as 30T) deliver higher top speed but require more motor torque. The 30T pinion offers a balanced middle ground suitable for mixed driving styles, whilst competitive racers might choose different ratios based on track conditions and motor specifications.
- Is this CNC steel pinion gear worth the investment over cheaper alternatives? — Yes. CNC machined steel pinions offer superior durability, precise tooth engagement, and longer service life compared to softer materials or poorly machined gears. For anyone investing in a quality brushless RC car UK setup, genuine ARRMA spare parts like this pinion ensure your vehicle performs optimally and remains reliable season after season.
- What tools do I need to install this pinion gear? — Installation typically requires a hex key to access your vehicle's motor shaft and a pinion gear puller (or equivalent tool) to safely remove the old pinion. Some ARRMA vehicles use different fastening methods, so consult your vehicle manual for specific installation guidance, or visit RC Model Shop for expert advice on fitting this component to your model.
- Can I use this pinion gear with different spur gear tooth counts? — The pinion gear must mesh properly with a compatible 0.8 modulus spur gear. The specific spur gear tooth count you choose depends on your desired gearing ratio and performance goals. RC Model Shop can advise on ideal pairings for your vehicle and driving style.
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 30T 0.8Mod 1/8 inch Bore CNC Steel Pinion Gear Z-ARA311092 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.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- 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.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- 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.
