- Brand: ARRMA
- Model Number: Z-ARA-2174
- EAN: 5052127050753
- Part Type: Pinion Gear
- Tooth Count: 23T
- Gear Pitch: MOD 0.5
- Motor Shaft Bore: 3.2mm
- Material: Steel
- Manufacturing: CNC Precision Engineered
- Included Fastener: 1 x M3 x 4mm Set Screw
- Compatible Models: ARRMA 1/16 Mini Kraton 3S, ARRMA 1/16 MOJAVE GROM 223S BLX 4X4 DT, ARRMA 1/14 TYPHON GROM 223S BLX 4X4
- Fitment: Direct replacement for ARRMA brushless RC vehicles with 3.2mm motor shaft
- Quantity in Box: 1 x Pinion Gear 23T
Overview
The ARRMA Pinion Gear 23T MOD 0.5 CNC 3.2mm Bore (Z-ARA-2174) is a precision-engineered replacement pinion gear designed for high-performance RC cars and trucks. This tough steel pinion gear is engineered to deliver reliable, smooth operation in extreme RC conditions, making it an essential component for anyone running ARRMA brushless RC models. Whether you're maintaining your 1/16 Mini Kraton, 1/16 MOJAVE GROM, or 1/14 TYPHON GROM, this 23-tooth pinion gear provides the direct replacement you need to keep your RC vehicle performing at its best. RC enthusiasts across the UK trust ARRMA for their transmission components because of the brand's commitment to precision manufacturing and durability.
This pinion gear is specifically engineered as a direct replacement part for your ARRMA RC buggy, desert truck, or speed monster truck. The 23T configuration is ideal for drivers who want to fine-tune their vehicle's acceleration and top speed characteristics. With the MOD 0.5 pitch and 3.2mm bore, this pinion gear is designed to work seamlessly with ARRMA's brushless motor systems and transmission setups. Whether you're a weekend basher, a competitive racer, or an RC enthusiast looking to upgrade your drivetrain, this replacement gear ensures optimal power delivery and consistent performance lap after lap.
ARRMA's reputation for quality in the RC hobby has made them one of the most recognised manufacturers of ready-to-run RC vehicles in the UK. This pinion gear reflects that same dedication to excellence, featuring CNC precision manufacturing that ensures each tooth is cut to exact specifications. The result is a gear that meshes perfectly with your spur gear, reducing noise, minimising wear, and maximising efficiency in your RC's transmission system.
Key Features
- Strong and Durable Steel Construction — This pinion gear is manufactured from tough steel specifically chosen for its ability to withstand the extreme forces and high-speed impacts common in RC racing and bashing, ensuring long-lasting performance even during intense driving sessions.
- Precision Manufactured Tooth Profile — Each tooth on the 23T gear is cut using CNC machinery to exact tolerances, delivering smooth, quiet operation and optimal meshing with your spur gear for maximum efficiency and minimal backlash.
- CNC-Engineered Set Screw Hole — The precision-drilled M3 x 4mm set screw hole ensures perfect alignment on your motor shaft with no slipping or movement, guaranteeing consistent power transmission and reliable performance.
- 23-Tooth Configuration — With 23 teeth, this pinion gear offers a balanced gear ratio that is ideal for drivers seeking a blend of acceleration and top speed, making it suitable for various driving conditions and styles across UK RC tracks and terrain.
- 3.2mm Motor Shaft Compatibility — Designed specifically for use with ARRMA brushless motors featuring a 3.2mm shaft, this pinion gear guarantees proper fitment and secure mounting without modifications.
- MOD 0.5 Pitch Specification — The MOD 0.5 (0.5mm module) pitch ensures compatibility with ARRMA's standard spur gears and transmission systems, allowing you to maintain proper gear mesh and performance characteristics.
Technical Performance
The ARRMA Pinion Gear 23T MOD 0.5 is engineered to deliver exceptional performance across all ARRMA 1/16 and 1/14 scale brushless RC models. The 23-tooth design provides a moderate gear ratio that balances acceleration with top-end speed, making it ideal for drivers who want responsive handling without sacrificing overall velocity. The steel construction ensures the teeth can withstand the constant engagement with your spur gear, even under full throttle acceleration and aggressive cornering. The CNC manufacturing process guarantees that every tooth is cut to identical specifications, eliminating any vibration or noise that might result from poorly manufactured gears. The precision-engineered set screw hole accepts the included M3 x 4mm set screw, which locks the gear securely onto your 3.2mm motor shaft. This design prevents the common problem of gear slippage, which can cause inconsistent performance and drivetrain wear. Whether you're running 3S LiPo batteries in your Mini Kraton 3S, MOJAVE GROM, or TYPHON GROM, this pinion gear delivers consistent, reliable operation. The MOD 0.5 pitch specification ensures proper mesh geometry with ARRMA's spur gears, maintaining the optimal contact pattern and load distribution that extends the life of your entire transmission system.
What's in the Box
- 1 x Pinion Gear 23T MOD 0.5 CNC
- 1 x M3 x 4mm Set Screw
Frequently Asked Questions
- Is this 23T pinion gear compatible with my ARRMA RC vehicle? — Yes, this Z-ARA-2174 pinion gear is compatible with multiple ARRMA models including the 1/16 Mini Kraton 3S, 1/16 MOJAVE GROM 223S BLX 4X4, and 1/14 TYPHON GROM 223S BLX 4X4. Check the product fitment list on our website to confirm compatibility with your specific ARRMA model.
- What is the difference between the 23T and other tooth counts like 24T or 25T? — The tooth count directly affects your vehicle's gear ratio. A 23T pinion gear will provide slightly more acceleration compared to a 24T or 25T gear, whilst sacrificing a small amount of top-end speed. If you want faster acceleration, choose the 23T; if you prefer higher top speed, opt for a 24T, 25T, or higher tooth count.
- Will this gear work with my brushless motor? — This pinion gear is specifically designed for ARRMA brushless motors with a 3.2mm shaft. Confirm your motor shaft diameter before purchasing. This gear will not fit motors with different shaft sizes.
- Do I need to replace my spur gear at the same time? — Not necessarily. This pinion gear will work with your existing ARRMA spur gear, as long as your spur gear is in good condition and uses the same MOD 0.5 pitch specification. However, if your spur gear shows signs of wear or damaged teeth, we recommend replacing it to maintain optimal transmission efficiency.
- Is the set screw included? — Yes, one M3 x 4mm set screw is included in the box. This is the standard set screw used to secure the pinion gear onto your motor shaft.
- How do I install this pinion gear on my RC motor? — Slide the gear onto your 3.2mm motor shaft, align the set screw hole with the small groove on the shaft, and tighten the M3 x 4mm set screw securely with an appropriate hex wrench. Ensure the gear is fully seated against the motor can before tightening.
- Can I use this with different battery configurations? — Yes, this pinion gear works with standard ARRMA 3S LiPo battery systems used in the compatible models. The gear itself is battery-agnostic; your battery choice affects motor performance, not the gear's operation.
- Is this suitable for beginners? — Yes, this is a straightforward replacement part suitable for beginners. Installation is simple and requires only a small hex wrench. We recommend having basic mechanical knowledge, but many new RC enthusiasts successfully replace pinion gears with minimal difficulty.
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 Pinion Gear 23T MOD 0.5 CNC 3.2mm Bore Z-ARA-2174 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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