This tough steel 22T MOD0.5 Pinion Gear provides a direct replacement for your kit item.
Includes
1 x 22T Mod 0.5 Pinion Gear
1 x M3 x 4mm Set Screw
Features
- Strong and durable steel for long-lasting performance in extreme RC conditions
- Precision manufactured tooth profile for smooth operation
- Precision manufactured set screw hole
- For 3.2mm motor shaft
- Product Type: Pinion Gear
- Tooth Count: 22T
- Gear Module: MOD 0.5
- Motor Shaft Bore Diameter: 3.2mm
- Material: Hardened Steel
- Manufacturing Method: CNC Precision Engineered
- Included Set Screw: M3 x 4mm
- Manufacturer: ARRMA
- Part Number: Z-ARA-2022
- EAN Code: 5052127050166
- Compatible With: ARRMA 1/16 Mini Kraton 3S, ARRMA 1/16 MOJAVE GROM 223S BLX 4X4, ARRMA 1/14 TYPHON GROM 223S BLX 4X4
Overview
The ARRMA Pinion Gear 22T MOD 0.5 CNC 3.2mm Bore is a precision-engineered replacement gear designed for RC enthusiasts who demand reliability and performance from their electric RC cars. Whether you're running an ARRMA 1/16 Mini Kraton, 1/16 MOJAVE GROM, or 1/14 TYPHON GROM brushless RC buggy, this pinion gear is the direct replacement component you need to maintain optimal drivetrain performance. As a UK RC hobby retailer, we understand that gearing is critical to your vehicle's speed and acceleration characteristics, and this genuine ARRMA part delivers the quality and durability that serious RC car pilots expect.
This 22T steel pinion gear is manufactured to exacting CNC standards, ensuring consistent tooth profiles and precise bore dimensions that guarantee smooth meshing with your spur gear. The MOD 0.5 specification means this gear is compatible with the standard transmission systems found in modern ARRMA ready to run RC vehicles. If you're experiencing drivetrain issues, upgrading your gearing ratio, or simply need a replacement after heavy use, this authentic ARRMA part is engineered to restore your RC buggy, monster truck or speed truck to peak performance.
Constructed from tough, hardened steel, this pinion gear is built to withstand the extreme RC conditions you'll encounter whether you're bashing on rough terrain or competing on smooth tracks. The precision manufacturing extends to the set screw hole, which is engineered to hold your gear securely in place without slipping or shifting during hard acceleration or braking. For anyone serious about maintaining their ARRMA RC collection, this 22T MOD 0.5 pinion gear is an essential spare part that belongs in every RC enthusiast's toolbox.
Key Features
- Strong and Durable Steel Construction — This pinion gear is manufactured from hardened steel that provides exceptional longevity and strength, enabling it to withstand the punishing forces and impacts that come with extreme RC conditions. Whether you're bashing through rough terrain or pushing your RC car to the limit, this material choice ensures the gear won't strip teeth or fail prematurely.
- Precision Manufactured Tooth Profile — Every tooth on this 22T gear is manufactured to exact specifications using CNC machining, which guarantees smooth, consistent operation when meshing with your vehicle's spur gear. This precision tooth geometry reduces friction, minimises noise, and distributes load evenly across all teeth, resulting in efficient power transfer and longer component life.
- CNC Precision Engineered Set Screw Hole — The M3 set screw hole is manufactured with the same precision as the gear teeth, ensuring that the included M3 x 4mm set screw locks your pinion gear securely onto your 3.2mm motor shaft. This prevents the common problem of gear slippage during hard acceleration, which can be catastrophic to your RC vehicle's performance.
- 3.2mm Motor Shaft Compatibility — This gear is specifically designed for 3.2mm motor shafts, a standard size used across the ARRMA range of RC vehicles. The precise bore diameter ensures a snug, secure fit that maintains alignment and reduces wobbling.
- Direct OEM Replacement Part — As a genuine ARRMA component, this pinion gear is the exact same part fitted to new ARRMA RC vehicles, guaranteeing compatibility and reliability. You're not buying an aftermarket alternative; you're buying the component ARRMA engineers specified for your vehicle.
- Includes Essential Hardware — Each gear comes complete with one M3 x 4mm set screw, so you have everything needed to install the gear immediately without searching for additional components.
Technical Performance
This 22T MOD 0.5 pinion gear represents a specific gearing ratio choice that impacts your ARRMA RC vehicle's acceleration, top speed, and overall drivetrain efficiency. With 22 teeth, this pinion is larger than some alternatives (such as 18T variants), which means it provides a lower gear ratio when meshed with your vehicle's spur gear. This lower ratio typically delivers improved acceleration and torque, making it an excellent choice for rocky terrain, loose surfaces, or when you want more responsive throttle response. The MOD 0.5 module specification is the industry standard for ARRMA's brushless 1/14 and 1/16 scale vehicles, ensuring perfect compatibility with the spur gears fitted to these models. The gear is manufactured to such exacting tolerances that it eliminates the backlash and play that can develop in lower-quality aftermarket alternatives, maintaining precise power delivery throughout your run. The hardened steel composition provides superior wear resistance compared to inferior materials, ensuring that after dozens of charge cycles and hundreds of kilometres of running, your teeth remain sharp and your meshing remains perfect. For anyone running an ARRMA 1/16 Mini Kraton 3S, 1/16 MOJAVE GROM, or 1/14 TYPHON GROM brushless RC vehicle, this pinion gear is the authentic upgrade or replacement that restores factory performance standards.
What's in the Box
- 1 x 22T MOD 0.5 Steel Pinion Gear with 3.2mm Bore
- 1 x M3 x 4mm Set Screw for Secure Motor Shaft Installation
Frequently Asked Questions
- What vehicles is this 22T pinion gear compatible with? — This gear is the standard or optional component for multiple ARRMA RC models, including the 1/16 Mini Kraton 3S, 1/16 MOJAVE GROM 223S BLX 4X4 Desert Truck, and 1/14 TYPHON GROM 223S BLX 4X4 Buggy. If you own any of these brushless RC vehicles, this pinion gear will fit directly without modification.
- Why would I need to replace my pinion gear? — Pinion gears wear over time, especially if you run your RC car frequently or in abrasive conditions. Worn teeth reduce power transfer efficiency, create noise and vibration, and can eventually cause drivetrain failure. Additionally, some RC enthusiasts change their pinion gear size to adjust their vehicle's gearing ratio for different terrains or driving styles.
- What is the difference between 18T, 22T and other pinion sizes? — The tooth count directly affects your vehicle's gear ratio. A 22T pinion gear is larger than an 18T, which means a lower overall gear ratio when meshed with your spur gear. Lower ratios provide quicker acceleration and better torque response but slightly lower top speed, making them ideal for bashing and rough terrain. Higher tooth count pinions (like 22T) are excellent for loose, rocky surfaces where quick response is crucial.
- Is this genuine ARRMA or an aftermarket copy? — This is the genuine ARRMA original part, manufactured to the exact specifications ARRMA uses in their factory-built vehicles. You're getting the same component quality that comes in new ARRMA ready to run RC cars.
- Will this work with my ARRMA 1/14 TYPHON GROM? — Yes, the 1/14 TYPHON GROM 223S BLX is specifically listed as compatible with this 22T MOD 0.5 pinion gear, whether you own the brushless buggy without battery and charger, or the version that includes battery and charger.
- Do I need any tools to install this pinion gear? — You'll need a small hex key or screwdriver to tighten the M3 set screw onto your motor shaft. Most RC tool kits include this size already. The installation process takes just a few minutes and requires no special equipment.
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 22T MOD 0.5 CNC 3.2mm Bore Z-ARA-2022 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:
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