| Key Highlights | 390 Duke | Bullet 650 |
|---|---|---|
| Price | ₹ 2.77 Lakh | ₹ 3.65 Lakh |
| Displacement | 349.32 cc | 647.95 cc |
| Power | 40.93 bhp @ 8600 rpm | 34.6 kW @ 7250 rpm |
| Mileage | 30 kmpl | 20.2 kmpl |
| Top Speed | 167 km/h | _ |
| Max Power Highest power the engine/motor can produce. | 40.93 bhp @ 8600 rpm | 34.6 kW @ 7250 rpm |
| Max Torque The highest twisting force the engine generates, which affects acceleration and pulling power. | 33.5 Nm @ 7000 rpm | 52.3 Nm @ 5650 rpm |
| Battery Type | 12 V, 8 AH MF battery | N/A |
| Compression Ratio Compression ratio is how much the engine squeezes air-fuel before ignition. Higher ratios mean more power; lower ratios improve durability. | 12.68:1 | 9.5 : 1 |
| Cooling System Method used to prevent engine overheating. | Liquid cooling with radiator | Oil Cooled |
| Emission Type Pollution level compliance of the engine. | BS6 Phase 2 | BS6 Phase 2B |
| Engine Type Design and working of the two-wheeler's engine. | Single Cylinder Liquid Cooled, 4 stroke, DOHC, Internal Combustion Engine | Inline twin cylinder, 4 stroke, SOHC |
| Displacement Engine cylinder capacity measured in cc. | 349.32 | 647.95 |
| Bore Bore is the diameter of a bike’s engine cylinder. A larger bore allows more fuel-air mix, increasing power and speed. | 89 mm | 78 mm |
| Charging At Charging Station | N/A | N/A |
| Charging At Home | N/A | N/A |
| Charging Station Locater | N/A | N/A |
| Launch Control System for fast, controlled acceleration. | Yes | N/A |
| No Of Cylinders | 1 | 2 |
| Peak Power Highest power a bike/scooter can produce. | 43 W | N/A |
| Quick Shifter A feature that allows gear shifting without clutch. | Yes | N/A |
| Range The maximum distance an electric two-wheeler can travel on a full charge. | 450 Km | N/A |
| Stroke Stroke is the piston’s movement inside the engine cylinder. Longer strokes give more torque, shorter strokes give more speed and higher RPM. | 56.15 mm | 67.8 mm |
| Valve Per Cylinder Number of valves in each engine cylinder. | 4 | N/A |
| Top Speed | 167 Km/h | N/A |
| Tyre Size | Front : 110/70-17, Rear : 150/60-17 | Front: 100/90- R19/ Rear: 140/70- R18 |
| Wheel Size | Front : 431.8 mm, Rear : 431.8 mm | Front : 120 mm, Rear : 190 mm |
| Wheels Type | Alloy | Spoke |
| Ignition The system that starts the engine, usually via a key, button, or smart start. | CDI | N/A |
| Wheelbase The distance from the center of the front wheel to the center of the rear wheel, affecting stability, handling, and riding comfort. | 1354 mm | 1480 mm |
| Radial Tyre A tyre with strong sidewalls and better grip, durability, and heat resistance. | Yes | N/A |
| Tubless | Yes | N/A |
| Rear Brake | Disc with Floating calliper | Disc |
| Front Brake | Disc with Radially mounted calliper | Disc |
| Rear Brake Diameter | 240 mm | 300 mm |
| Fuel Supply | Bosch Electronic Fuel Injection | Fuel Injection |
| Fuel Capacity | 15 L | 14.8 L |
| Fuel Reserve | 3 L | N/A |
| Body Type The overall design and shape of the bike (e.g., cruiser, sports, scooter). | Naked Bike | N/A |
| Frame The main structure holding the bike together. | Split-Trellis Frame | N/A |
| Dry Weight Bike’s weight without fuel and fluids. | 163 Kg | N/A |
| Ground Clearance Distance between the bike’s lowest part and the ground. | 183 mm | 154 mm |
| Height | N/A | 1155 mm |
| Kerb Weight Bike’s weight with fuel and fluids. | 168.3 Kg | 243 Kg |
| Length | N/A | 2260 mm |
| Saddle Height Distance from the ground to the seat. | 800 mm | N/A |
| Width | N/A | 830 mm |
| Charging Point A port to charge devices or the two-wheeler's battery. | Yes | N/A |
| Mobile Connectivity A feature to connect your phone to the two-wheeler's system. | Yes | N/A |
| Bluetooth Connectivity Wireless connection for calls, music, and navigation. | Yes | N/A |
| Riding Modes Different settings (e.g., Sport, Eco, Rain) that adjust performance and power delivery. | Street & Rain | N/A |
| Starting The method to start the bike (e.g., electric start, kick start, or both). | Electric Start | Electric start |
| Pass Switch A switch to flash the high beam, signaling other vehicles while overtaking. | Yes | N/A |
| Traction Control A system that prevents wheel slip by adjusting power during acceleration on slippery surfaces. | N/A | Yes |
| Display A screen that shows important riding information like speed, fuel, and trip details. | 5" TFT dash display | N/A |
| Instrument Console The main dashboard displaying speed, fuel, engine stats, and warnings. | Digital | Semi-Digital |
| Speedometer Displays the current speed of the bike in km/h or mph. | Digital | Analogue |
| Tripmeter Tracks specific trip distances separately from the odometer, useful for measuring short rides. | Digital | N/A |
| Techometer | Digital | N/A |
| Distance To Empty Indicator Estimates how far you can ride before the fuel runs out. | N/A | N/A |
| Low Battery Indicator Warns when the battery charge is low and may need recharging or replacement. | Yes | N/A |
| Low Oil Indicator Alerts when engine oil is low, preventing damage and ensuring smooth performance. | Yes | N/A |
| Service Due Indicator Reminds when the next bike servicing or maintenance is needed. | Yes | N/A |
| Transmission The entire system that transfers engine power to the wheels (includes clutch and gearbox). | Manual | Constant Mesh |
| Head Light | Full Split LED Headlamp | LED |
| Drls | Yes | N/A |
| Turn Signal Lamp Flashing lights on a two-wheeler that indicate the rider's turning or lane-changing direction. | LED | Halogen Bulb |
| Led Tail Light Energy-efficient, bright rear light. | Yes | N/A |
| Battery Capacity Total energy the battery can store. | 12 V, 8 AH | 12V, 12 Ah |
| Suspension Front | 5-click Compression & Rebound adjustable, Open Cartridge, WP APEX USD forks, 43mm diameter | Telescopic Fork 43mm |
| Suspension Rear | Adjustable WP APEX Monoshock, 5-step Rebound damping, 10-step preload adjustable | Twin Shock |
| Seat Type The design of the seat that affects comfort and seating position. | Split | N/A |
| Stepup Seat | Yes | N/A |
| Additional Features | Ride modes - Street & Rain, Motorcycle Traction Control (MTC), Track Screen, Ride-by-wire, Quickshifter+ | N/A |
| Anti Theft Alarm Alerts if someone tries to steal or tamper with the bike. | Yes | N/A |
| Navigation A feature that provides turn-by-turn directions on the two-wheeler display or connected device. | Yes | N/A |
| Mobile Application A companion app to monitor bike stats, location, and settings. | Yes | N/A |
| Cruise Control A feature in which rider can set a steady speed without using the throttle. | Yes | N/A |