- Brand: ARRMA
- Part Number: Z-ARA311059
- EAN: 5052127039079
- Product Type: Pinion Gear
- Number of Teeth: 29-30T
- Gear Pitch: Mod 1
- Bore Type: Safe-D5
- Compatible Vehicles: Arrma 1/5 Kraton 4X4 8S BLX EXB Brushless Monster Truck RTR (C-ARA5808V2T1), Arrma 1/5 Outcast 4X4 8S BLX EXB Brushless Stunt Truck RTR (C-ARA5810V2T1)
Overview
The ARRMA 29T Mod1 Safe-D5 Pinion Gear Z-ARA311059 is a precision-engineered replacement pinion gear designed specifically for high-performance brushless RC vehicles. As an essential drivetrain component, this pinion gear plays a critical role in delivering power from your motor to the wheels, making it an important upgrade or replacement part for RC enthusiasts across the UK. Whether you're maintaining your existing RC car UK setup or fine-tuning your vehicle's performance characteristics, this genuine ARRMA component ensures you get the exact fit and reliability you need for smooth, dependable operation.
Built to ARRMA's exacting standards, this pinion gear is engineered for seamless integration with their flagship 1/5 scale brushless RC monster trucks and stunt trucks. The Safe-D5 bore system represents modern engineering in RC drivetrain design, providing secure motor shaft engagement whilst maintaining the precision tolerances required for optimal gear meshing and minimal power loss. If you own an Arrma 1/5 Kraton 4X4 8S BLX or Arrma 1/5 Outcast 4X4 8S BLX brushless RC vehicle, this pinion gear is the perfect replacement when wear occurs or when you wish to experiment with different gear ratios to optimise your vehicle's performance on the track or off-road terrain.
For anyone serious about maintaining their ready to run RC vehicles, investing in genuine OEM replacement parts like this ARRMA pinion gear guarantees compatibility, durability and the performance characteristics your vehicle was engineered to deliver. This is not a generic aftermarket part—it's a factory-original component manufactured to the exact specifications required by ARRMA's engineering team.
Key Features
- 29 Teeth Configuration — This pinion gear features 29 teeth (within the 29-30T specification range), offering a specific gear ratio that affects your vehicle's acceleration, top speed and overall driveline efficiency, making it suitable for particular driving styles and terrain conditions.
- Mod1 Gear Pitch — The Mod1 (Module 1) pitch designation defines the gear's tooth profile and spacing, ensuring precise meshing with compatible spur gears and guaranteeing smooth power transmission without binding or excessive backlash that could compromise performance or cause drivetrain damage.
- Safe-D5 Bore System — The Safe-D5 bore is ARRMA's proprietary motor shaft interface system, engineered to provide secure, repeatable engagement with compatible motor shafts whilst allowing for easy removal and installation without the need for set screws or additional fasteners that could loosen during intense driving sessions.
- Genuine ARRMA Manufacturing — As an original equipment manufacturer part, this pinion gear is produced to ARRMA's stringent quality control standards, using high-grade materials and precision machining processes that guarantee durability and performance reliability you simply cannot replicate with generic alternatives.
- Direct Compatibility — This pinion gear is specifically engineered for the Arrma 1/5 Kraton 4X4 8S BLX EXB and Arrma 1/5 Outcast 4X4 8S BLX EXB brushless RC vehicles, ensuring plug-and-play installation with zero fitment issues or engineering compromises.
Technical Performance
The ARRMA 29T Mod1 Safe-D5 Pinion Gear represents the pinnacle of modern RC drivetrain engineering, combining precision manufacturing with materials science principles to deliver uncompromising performance in demanding applications. The Mod1 gear pitch system is internationally recognised for its reliability and efficiency, providing optimal tooth contact patterns that distribute load evenly across the gear mesh and minimise stress concentration points that could lead to premature wear or catastrophic failure. The 29-tooth configuration positions this pinion gear in the mid-range ratio spectrum, offering a balanced compromise between acceleration and top-end speed that suits versatile driving conditions rather than extremes in either direction. The Safe-D5 bore system eliminates the need for traditional set screw fastening methods, instead utilising a mechanically superior press-fit system that creates a permanent, vibration-resistant connection with your motor shaft, ensuring consistent power delivery and eliminating the common problem of pinion slippage that can occur with inferior retention methods. For owners of the Arrma 1/5 Kraton 4X4 8S BLX EXB Brushless Monster Truck RTR and Arrma 1/5 Outcast 4X4 8S BLX EXB Brushless Stunt Truck RTR, this pinion gear delivers the engineering-validated performance characteristics required for these high-powered, brushless-equipped 8S LiPo-capable vehicles, maintaining the efficiency standards and reliability margins that ARRMA has engineered into their platform.
What's in the Box
- 1x ARRMA 29T Mod1 Safe-D5 Pinion Gear
Frequently Asked Questions
- What vehicles is the ARRMA 29T Mod1 Safe-D5 Pinion Gear compatible with? — This pinion gear is specifically designed for the Arrma 1/5 Kraton 4X4 8S BLX EXB Brushless Monster Truck RTR and the Arrma 1/5 Outcast 4X4 8S BLX EXB Brushless Stunt Truck RTR. These are large-scale, high-powered brushless RC vehicles that benefit from genuine OEM replacement parts to maintain optimal performance and reliability.
- Why should I use a genuine ARRMA pinion gear instead of an aftermarket alternative? — Genuine ARRMA parts like this pinion gear are engineered and tested to work perfectly with your vehicle's specific drivetrain configuration, ensuring precise gear mesh alignment, optimal power transfer efficiency and longevity that generic alternatives cannot guarantee. The Safe-D5 bore system is proprietary to ARRMA and requires genuine parts for proper fit.
- How do I know when I need to replace my pinion gear? — Pinion gears should be inspected regularly for tooth wear, particularly at the tips and flanks where contact pressure is highest. Signs of worn gears include increased drivetrain noise, reduced efficiency, visible damage or metal particles in your transmission oil or lubricant.
- Does this pinion gear work with other RC brands? — No, the Safe-D5 bore system and Mod1 pitch profile are ARRMA-specific. This pinion gear is engineered exclusively for compatible ARRMA vehicles with Safe-D5 motor shafts. Using incompatible gears could damage your motor or transmission system.
- What gear ratio does 29 teeth provide? — The gear ratio depends on your vehicle's spur gear tooth count. Generally speaking, a 29-tooth pinion paired with a larger spur gear creates an underdrive condition that favours acceleration and torque, whilst reducing top speed—ideal for crawling, bashing and mixed terrain driving.
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 29T Mod1 Safe-D5 Pinion Gear Z-ARA311059 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.
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