RC Overhaul Helical Gears 22T/12T TRX-4M 1/18 Scale RC Crawler G-RCO-TRX019

• Brand: RC Overhaul
• Part Number: G-RCO-TRX019
• EAN: 5055320229575
• Product Type: Helical-cut ring and pinion gears
• Gear Teeth Configuration: 22T front / 12T rear
• Gear Type: Helical-cut (not spur)
• Version: Overdrive
• Installation: Front and rear
• Vehicle Scale: 1/18
• Compatible With: Traxxas TRX-4M Ford Bronco 1/18 RTR (all colour variants: Area 51, Black, White, Red, Orange, Blue)
• Compatible With: Traxxas TRX-4M Land Rover Defender 1/18 RTR (all colour variants: Silver, Tan, Black, Green, Light Blue, Pink)
• Compatible With: Traxxas TRX-4M Chevrolet K10 High Trail 1/18 RTR (all colour variants: Red, Black, Blue)
• Compatible With: Traxxas TRX-4M Ford F-150 High Trail 1/18 RTR (all colour variants: Blue, Black, Brown)
• Materials: Precision machined metal construction
• Performance Feature: Improves climbing performance
• Performance Feature: Increases transmission durability
• Design Benefit: Helical cut reduces noise and improves load distribution

Overview

The RC Overhaul Helical Gears Fr/Rr 22t/12t TRX-4M (G-RCO-TRX019) represent a significant upgrade for anyone running a Traxxas TRX-4M scale RC crawler in the UK. Whether you're a seasoned RC car enthusiast or someone looking to enhance their trail truck's climbing capabilities, these precision-engineered helical gears deliver the transmission upgrade your vehicle needs to tackle steep and technical terrain with confidence. RC crawlers demand reliable, well-constructed drivetrain components, and these overdrive gears are specifically designed to meet those demands whilst providing noticeable improvements in performance on challenging off-road courses.

Manufactured by RC Overhaul, a recognised name in the RC hobby community, these helical-cut ring and pinion gears are machined to exacting standards. The overdrive version is particularly innovative, as it can be fitted to the front of your TRX-4M to take your climbing performance to the next level. If you've been searching for ways to improve your ready to run RC trail truck's ability to pull itself out of trouble on steep slopes and rocky obstacles, this upgrade offers a practical, cost-effective solution that doesn't require extensive modifications to your vehicle's existing setup.

Available as a spare part through RC Model Shop, the G-RCO-TRX019 is compatible with multiple versions of the Traxxas TRX-4M platform, making it an ideal choice for UK RC car enthusiasts who want to customise and upgrade their vehicles. The investment in quality driveline components pays dividends in improved performance, longevity and reliability during your RC sessions.

Key Features

• Helical-Cut Ring and Pinion Gears — These gears feature a helical-cut design rather than spur gearing, which distributes loads across a larger surface area and reduces noise during operation. The helical cutting also provides smoother engagement and improved durability, meaning your transmission will last longer and run quieter than standard gears.
• Overdrive Version Configuration — Unlike standard gears, this overdrive version is specifically designed for front installation on the TRX-4M. This clever configuration allows you to achieve higher ground clearance whilst maintaining traction, giving your scale RC crawler the mechanical advantage it needs to tackle extreme slopes and technical climbing sections with improved pulling power.
• 22T Front / 12T Rear Tooth Counts — The specific tooth ratio of 22 teeth on the front gear and 12 teeth on the rear pinion has been engineered to optimise your TRX-4M's climbing performance. This configuration strikes a balance between torque multiplication and speed, making it ideal for trail enthusiasts who prioritise obstacle negotiation over pure speed.
• Precision Machined Construction — Each gear is carefully machined to tight tolerances using quality materials and manufacturing processes. This precision ensures minimal backlash, smooth power transmission and reliable performance session after session. You can feel the difference when driving with machined gears compared to lower-quality alternatives.
• Beef Up Your Transmission — By upgrading from standard gears, you're dramatically increasing the durability and capability of your TRX-4M's drivetrain. These gears handle increased torque and lateral loads far better than factory equipment, allowing you to drive more aggressively without fear of transmission failure.
• TRX-4M Compatibility — Engineered specifically for the Traxxas TRX-4M platform, these gears offer guaranteed fitment across all TRX-4M variants, including the Ford Bronco, Land Rover Defender and Chevrolet K10 High Trail versions. Whether your TRX-4M is painted in Area 51 grey, black, white, red, orange, blue or any other colour variant, these gears will integrate seamlessly.

Technical Performance

The G-RCO-TRX019 represents a substantial upgrade over factory-standard gears, delivering noticeable improvements in transmission durability, climbing capability and overall drivetrain reliability. The helical-cut design is fundamental to the performance characteristics of these gears. Unlike traditional spur gears which engage with a sudden impact, helical gears feature angled teeth that gradually mesh together, distributing forces across a much larger contact surface. This results in dramatically reduced wear, lower operating temperatures, quieter operation and smoother power delivery throughout your climbing runs. The 22-tooth front gear paired with the 12-tooth rear pinion creates an effective gear reduction that multiplies torque to the wheels, giving your 1/18 scale TRX-4M the mechanical advantage needed to power over obstacles that would previously cause wheel slip or stalling. The overdrive front installation configuration is particularly clever, as it allows you to maintain the aggressive approach angles and departure angles that make the TRX-4M such a capable scale crawler whilst improving traction and pulling force. These gears are manufactured from quality materials using precision machining processes that ensure repeatability and consistency from one unit to the next. The tolerances are tight enough to eliminate excessive backlash, which would otherwise result in sloppy power transmission and reduced climbing efficiency. Every enthusiast who has upgraded to quality aftermarket gears reports improved confidence when tackling technical sections, reduced transmission noise during operation and significantly extended component lifespan compared to stock equipment.

What's in the Box

• RC Overhaul Helical-Cut Ring and Pinion Gear Set (22T/12T)
• Front and rear gears for TRX-4M installation

Frequently Asked Questions

• Will these helical gears improve my TRX-4M's climbing ability? — Yes, significantly. The overdrive version is specifically designed for front installation and provides improved climbing performance by multiplying torque to the wheels. Users report being able to tackle steeper slopes and more technical obstacles with confidence. The helical cut also distributes power more evenly than standard gears, allowing the vehicle to maintain traction in situations where factory gears might slip.
• Are these gears compatible with all versions of the Traxxas TRX-4M? — Yes, the G-RCO-TRX019 is compatible with all Traxxas TRX-4M variants, including the Ford Bronco (all colours including Area 51, Black, White, Red, Orange and Blue), the Land Rover Defender (all colours including Silver, Tan, Black, Green, Light Blue and Pink) and the Chevrolet K10 High Trail (all colours including Red, Black and Blue) as well as the Ford F-150 High Trail versions. You can install them regardless of which colour variant your TRX-4M is painted in.
• What is the difference between helical gears and standard spur gears? — Helical gears feature angled teeth that create a larger contact surface area during engagement, resulting in smoother power delivery, less noise and dramatically improved durability compared to spur gears. Standard factory gears use simpler spur-cut design which engages with a sudden impact. The helical design distributes loads more evenly and runs cooler, making it superior for demanding climbing applications.
• Can I use these gears as a beginner? — Absolutely. Gear upgrades are perfect for beginners because they're straightforward to install and deliver immediate benefits without requiring extensive modifications to your TRX-4M. If you can follow a standard installation guide, you can upgrade your gears and enjoy better climbing performance right away. Many UK RC enthusiasts install these as their first upgrade after purchasing their TRX-4M.
• How do overdrive gears differ from standard gearing? — Overdrive gears like this 22T/12T configuration provide more torque multiplication than factory equipment, giving your TRX-4M greater pulling power and improved ability to negotiate obstacles. The front installation means you get the benefits of overdrive ratio without sacrificing the scale appearance and approach angles of your vehicle.
• Will these gears require modifications to my TRX-4M? — No, these gears are designed as a direct replacement for factory equipment, so installation should require no modifications to your vehicle. They bolt directly into the existing transmission housings, making them one of the easiest performance upgrades you can perform.
• How much will these gears improve my transmission durability? — The precision machining and helical-cut design significantly extend the lifespan of your drivetrain compared to factory gears. The improved load distribution means less stress on individual teeth, reduced operating temperatures and fewer instances of gear damage or chipping even under aggressive driving conditions.

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 RCO Helical Overdrive Gears Fr/Rr 22t/12t TRX-4M G-RCO-TRX019 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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