The FuelX Pro+ is the premium performance fuel injection optimizer designed specifically for the Royal Enfield Classic 350 (2021–2024). Built for the modern J-Series engine platform, the Pro+ version goes beyond standard autotuning by offering 10 switchable maps via a handlebar-mounted switch.
This allows you to transform the Classic 350 from a fuel-efficient daily commuter into a torque-rich highway cruiser, all while ensuring the engine runs cooler and smoother than the stock factory settings.
Key Features
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10 Switchable Autotune Maps: Includes a handlebar-mounted, backlit switch that allows you to cycle through 10 fueling levels. You can prioritize maximum fuel economy (Levels 1–3) or peak torque and engine cooling (Levels 7–9) on the fly.
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Handlebar Map Switch: A premium, weatherproof interface that provides instant control over your engine’s fueling personality without the need for a laptop or stopping the motorcycle.
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Real-Time Autotuning: Regardless of the selected map, the unit intelligently monitors engine load, temperature, and altitude to maintain the perfect Air-Fuel Ratio (AFR) for that specific setting.
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Enhanced Low-to-Mid Range Torque: The Pro+ enriches the fuel mixture to provide a noticeably “meatier” mid-range. This results in better roll-on acceleration, easier overtakes, and a more effortless feel when riding with a pillion.
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Cooler Engine Operation: By correcting the “lean” factory mixture required for BS6/OBD2 compliance, the FuelX Pro+ helps the 349cc air-oil cooled engine run up to 10% cooler, reducing thermal stress during long summer tours.
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Elimination of Jerkiness: It smoothes out the low-speed “on-off” throttle response, making the Classic 350 much more refined during slow-speed urban maneuvers and heavy traffic.
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Plug-and-Play Installation: Features a model-specific harness with OEM-spec connectors. No wire cutting or splicing is required, making the installation 100% reversible.
Technical Specifications
| Feature | FuelX Pro+ Details |
| Compatible Model | Royal Enfield Classic 350 (J-Series) |
| Year Range | 2021, 2022, 2023, 2024 |
| Interface | Handlebar Map Switch (Backlit) |
| Map Selection | 10 On-the-Fly Switchable Maps |
| Operation Type | Manual Selection with Real-Time Autotune |
| Build Quality | Fully Weatherproof and Shockproof |
Why Choose FuelX Pro+ for Your Classic 350?
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Versatility for Every Journey: Use the “Eco” modes for a relaxed city commute and instantly switch to “Performance” modes when heading out on the highway or climbing mountain passes for that extra grunt.
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The Essential “Mod” Companion: If you have upgraded to a free-flow exhaust (like Red Rooster or Hitchcock) or a high-performance air filter, the Pro+ is vital to ensure the engine doesn’t run dangerously lean, protecting your internal components.
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Refined “Thump”: The optimized fueling ensures a more consistent engine beat and a crisper exhaust note, significantly enhancing the legendary Classic 350 riding experience.
Installation Note
The main module is typically housed behind the side panels or under the seat, while the waterproof map switch is clamped onto the handlebar for easy thumb access. Because it uses original factory connectors, you can easily remove the unit before a scheduled service visit, ensuring the bike’s ECU history and warranty remain untouched.
