HW30404803

Overview

Introducing the Hobbywing QuicRun 2840 SL G2 brushless motor — a premium choice for UK RC enthusiasts looking to upgrade their 1/14th and 1/16th scale RC cars with reliable, efficient performance. Whether you're running an off-road truck, short course truck, monster truck, or on-road vehicle, this high-performance brushless motor delivers exceptional power with minimal power consumption and heat generation. The QuicRun 2840 SL G2 represents the latest generation in Hobbywing's renowned motor technology, engineered for both competitive racers and weekend bashers who demand dependable performance in any conditions.

This brushless RC motor is designed around high efficiency principles, achieving up to 80% efficiency under normal load conditions. What does this mean for you? Your RC car will run cooler, maintain more stable continuous output, and consistently deliver optimal performance lap after lap or bash session after bash session. The 2840SL is not just powerful — it's intelligent engineering that prioritises reliability and longevity, making it an excellent investment for anyone serious about their RC hobby in the UK.

The motor comes ready to use straight out of the box with pre-soldered gold-plated 3.5mm connectors and flexible silicone wire output, eliminating the need for soldering and making installation quicker and cleaner. This plug-and-play design means you can focus on the fun of racing rather than spending hours on technical preparation.

Key Features

• High Efficiency Design — The motor achieves maximum efficiency of up to 80%, which means lower power consumption from your battery, cooler running temperatures, and more consistent performance throughout your driving session. This efficiency translates directly to longer runtimes and better value from your LiPo batteries.
• Low Temperature Rise — Under the same load conditions, the motor operates at significantly lower temperatures than conventional motors, reducing thermal stress on internal components and extending the motor's operational lifespan. Cooler running also means more stable power delivery and predictable handling characteristics.
• Stable Continuous Output — The engineering of the 2840 SL G2 ensures that power delivery remains consistent throughout your entire driving session, preventing the performance drops that occur as traditional motors heat up. This stability is crucial for maintaining competitive lap times or smooth, responsive control during bashing.
• IP56 Protection Rating — With IP56 dust and water resistance, this brushless motor is fully capable of handling off-road vehicles operating in harsh outdoor environments, wet grass, muddy tracks, and dusty conditions. You can confidently run your RC car in challenging British weather without worrying about moisture or debris damaging the motor internals.
• Silicone Wire Output — The motor features premium silicone wire output instead of rigid enameled wires, allowing for more flexible and clean wire routing during installation. This makes fitting the motor into your vehicle significantly easier and allows for neater cable management within your RC chassis.
• Plug and Play Convenience — Pre-soldered with high-quality gold-plated 3.5mm connectors, this motor eliminates the hassle of soldering connections. Simply plug it into your ESC and start racing immediately, improving your overall quality of life as an RC enthusiast and allowing you to enjoy the thrill of racing without technical delays.
• Precision Craftsmanship — Built with selected 0.2mm thick silicon steel laminations, a high-strength explosion-proof rotor, high-temperature resistant enameled wire, and leading brand premium high-precision bearings. Every component is selected for durability and reliability, ensuring this motor will withstand the demands of serious RC use.
• Explosion-Proof Rotor Design — The high-strength rotor is engineered to maintain structural integrity even under extreme conditions, providing exceptional durability and safety during high-speed operation and ensuring the motor won't fail when you need it most.

Technical Performance

The Hobbywing QuicRun 2840 SL G2 is a brushless sensorless motor with a 4700KV rating, optimised for 2S LiPo battery systems. The motor measures 28mm in outer diameter with a 40.5mm length and weighs just 89 grams, making it an ideal size for 1/14th scale vehicles under heavy load conditions or 1/16th scale vehicles in general use. The 3.175mm shaft diameter integrates seamlessly with standard RC vehicle drivetrain components. The motor features a 4-pole construction with precision bearings (D9×D4×T4 front bearing and D9.525×D3.175×T3.967 rear bearing) that ensure smooth, low-friction operation. Under no-load conditions, the motor draws just 3.1 amps, demonstrating excellent efficiency. With gold-plated 3.5mm male connectors, this motor pairs perfectly with ESCs like the QuicRun WP 12BL45 G2, which is specifically recommended for optimal performance. The combination of high-efficiency design, robust construction using silicon steel laminations, and premium bearings from recognised brands ensures reliable performance whether you're competing in organised RC racing or enjoying weekend bashing sessions. The IP56 protection rating provides genuine dust and moisture resistance, making this motor suitable for diverse UK racing environments from indoor carpet tracks to outdoor dirt circuits and wet conditions.

What's in the Box

• Hobbywing QuicRun 2840 SL G2 Brushless Motor (4700KV)
• Pre-soldered gold-plated 3.5mm connectors
• Silicone wire output leads

What You Need to Complete

• Brushless ESC compatible with 2S LiPo (Hobbywing QuicRun WP 12BL45 G2 recommended)
• 2S LiPo battery (7.4V nominal voltage)
• RC vehicle chassis compatible with 28mm diameter motors (1/14th or 1/16th scale)
• Battery charger (if not already owned)
• Motor pinion gear (if required for your specific vehicle)

Frequently Asked Questions

• Is the Hobbywing QuicRun 2840 SL G2 suitable for beginners? — Yes, absolutely. The plug-and-play design with pre-soldered connectors eliminates the need for soldering skills, and the brushless sensorless design is very forgiving and reliable. The high efficiency and stable power delivery make it predictable and easy to control, making it ideal for beginners learning RC car fundamentals whilst also offering the performance that experienced drivers appreciate.
• What battery does this motor need? — The Hobbywing QuicRun 2840 SL G2 is optimised for 2S LiPo battery systems, providing 7.4V nominal voltage. A quality 2S LiPo battery from a recognised RC brand will deliver optimal performance. Always ensure you use a compatible LiPo balance charger and follow safe battery handling practices.
• What scale RC vehicles is this motor suitable for? — This motor is designed for both 1/16th and 1/14th scale models. For 1/14th scale vehicles, it performs best in light-load applications, whilst for 1/16th scale vehicles, it can handle heavy-load scenarios. The 28mm diameter and 40.5mm length make it compact enough for smaller scales whilst delivering ample power.
• What vehicle types can I use this motor with? — The QuicRun 2840 SL G2 is compatible with trucks, off-road vehicles, on-road vehicles, short course trucks, and monster trucks within the 1/14th and 1/16th scale ranges. Its versatility makes it suitable for multiple vehicle platforms and driving styles.
• How efficient is this motor compared to other brushless motors? — The QuicRun 2840 SL G2 achieves maximum efficiency of up to 80%, which is exceptionally high for a motor in this size class. This means less power wasted as heat, longer runtimes from your battery, cooler running temperatures, and more consistent performance throughout your driving session.
• What ESC should I pair with this motor? — Hobbywing recommends the QuicRun WP 12BL45 G2 as the optimal ESC partner for this motor. This ESC is specifically tuned to work seamlessly with the 2840 SL G2, providing the best performance and reliability combination.
• Is the motor waterproof? — The motor features an IP56 protection rating, which means it offers dust resistance and reliable performance in wet conditions. Whilst not fully waterproof, it can handle normal off-road racing in British weather, including rain and muddy track conditions, without reliability issues.
• Does this motor come ready to install? — Yes, it comes pre-soldered with gold-plated 3.5mm connectors and flexible silicone wire output leads. You can simply plug it into a compatible ESC without any additional soldering or preparation, making installation quick and straightforward.
• What makes this motor better than brushed alternatives? — Brushless motors like the QuicRun 2840 SL G2 offer significantly higher efficiency, lower heat generation, longer lifespan (no brush wear), more consistent power delivery, and better acceleration characteristics compared to brushed motors. They're the standard choice for modern RC cars.
• How much does this motor weigh? — The motor weighs just 89 grams, making it lightweight enough for 1/16th scale vehicles whilst being robust enough for demanding 1/14th scale applications. The light weight helps maintain good power-to-weight ratios in your RC vehicle.

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 HOBBYWING QUICRUN 2840SL 4700KV MOTOR BLACK HW30404803 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.