| Key Highlights | 250 Duke | RC 390 |
|---|---|---|
| Price | ₹ 2.12 Lakh | ₹ 3.23 Lakh |
| Displacement | 249.07 cc | 373 cc |
| Power | 30.57 bhp @ 9250 rpm | 32 kW @ 9,000 rpm |
| Mileage | 31 kmpl | 29 kmpl |
| Top Speed | 148 km/h | 160 km/h |
| Max Power Highest power the engine/motor can produce. | 30.57 bhp @ 9250 rpm | 32 kW @ 9,000 rpm |
| Max Torque The highest twisting force the engine generates, which affects acceleration and pulling power. | 25 Nm @ 7250 rpm | 37 Nm @ 7000 rpm |
| Battery Type | 12 V, 8 AH MF battery | MF battery |
| Compression Ratio Compression ratio is how much the engine squeezes air-fuel before ignition. Higher ratios mean more power; lower ratios improve durability. | 12.63:1 | 12.88:1 |
| Cooling System Method used to prevent engine overheating. | Liquid cooling with radiator | Liquid cooling. Curved radiator with fans for better heat management |
| Emission Type Pollution level compliance of the engine. | BS6 Phase 2 | BS6 |
| Engine Type Design and working of the two-wheeler's engine. | Single Cylinder Liquid Cooled, FI Engine | Single Cylinder, Liquid Cooled, DOHC, FI Engine |
| Displacement Engine cylinder capacity measured in cc. | 249.07 | 373 |
| Bore Bore is the diameter of a bike’s engine cylinder. A larger bore allows more fuel-air mix, increasing power and speed. | 72 mm | 89 mm |
| Peak Power Highest power a bike/scooter can produce. | 31 W | 43 W |
| Quick Shifter A feature that allows gear shifting without clutch. | N/A | Yes |
| Range The maximum distance an electric two-wheeler can travel on a full charge. | 465 Km | 397 Km |
| Stroke Stroke is the piston’s movement inside the engine cylinder. Longer strokes give more torque, shorter strokes give more speed and higher RPM. | 61.1 mm | 60 mm |
| Top Speed | 148 Km/h | 160 Km/h |
| Tyre Size | N/A | Front : 110/70-17, Rear : 150/60-17 |
| Wheel Size | N/A | Front : 431.8 mm, Rear : 431.8 mm |
| Ignition The system that starts the engine, usually via a key, button, or smart start. | CDI | N/A |
| Tyre Brand | N/A | 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. | N/A | 1343 mm |
| Front Tyre Pressure Rider | 29 psi | N/A |
| Front Tyre Pressure Rider And Pillion | 29 psi | N/A |
| Rear Tyre Pressure Rider | 32 psi | N/A |
| Rear Tyre Pressure Rider And Pillion | 32 psi | N/A |
| Abs (Anti-locking Braking System) Prevents wheel locking during hard braking, improving control and safety. | Bosch Dual Channel | Dual Channel |
| Rear Brake Diameter | 240 mm | 230 mm |
| Fuel Supply | Bosch Electronic Fuel Injection | Bosch Electronic Fuel Injection (EFI) |
| Fuel Capacity | 15 L | 13.7 L |
| Fuel Reserve | 3 L | 1 L |
| Body Type The overall design and shape of the bike (e.g., cruiser, sports, scooter). | Street Bike | Sports |
| Frame The main structure holding the bike together. | Split-Trellis Frame | Split-Trellis frame (Tubular) |
| Adjustable Windshield A windshield that can be raised, lowered or tilted left/right to improve wind protection and rider comfort. | N/A | Yes |
| Ground Clearance Distance between the bike’s lowest part and the ground. | 176 mm | 153 mm |
| Height | N/A | 830 mm |
| Kerb Weight Bike’s weight with fuel and fluids. | 162.8 Kg | 172 Kg |
| Length | N/A | 2145 mm |
| Saddle Height Distance from the ground to the seat. | 800820 mm | 835 mm |
| Seat Height Distance from the ground to the seat. | 800 mm | 824 mm |
| Width | N/A | 760 mm |
| Mobile Connectivity A feature to connect your phone to the two-wheeler's system. | Yes | N/A |
| Riding Modes Different settings (e.g., Sport, Eco, Rain) that adjust performance and power delivery. | No | Yes |
| Starting The method to start the bike (e.g., electric start, kick start, or both). | Electric Start | Self Start Only |
| Engine Kill Switch A button to instantly turn off the engine for safety and convenience. | 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" LCD display | Yes |
| Fuel Gauge Indicates the current fuel level in the tank. | Digital | Yes |
| Instrument Console The main dashboard displaying speed, fuel, engine stats, and warnings. | Digital | TFT |
| Techometer | Digital | N/A |
| Average Fuel Economy Indicator Displays the bike’s average fuel consumption over a period of riding. | N/A | Yes |
| Distance To Empty Indicator Estimates how far you can ride before the fuel runs out. | N/A | Yes |
| Service Due Indicator Reminds when the next bike servicing or maintenance is needed. | Yes | N/A |
| Clutch A device that connects and disconnects the engine from the wheels for smooth gear shifts. | Assist And Slipper Clutch | PASC™ antihopping clutch, mechanically operated |
| Head Light | Full Split LED Headlamp | LED |
| Projector Headlights Projector headlights focus on the road, improving visibility, reducing glare for others, and offering a sharper, more efficient beam. | N/A | Yes |
| Pilot Lamps Small front lights that stay on with the headlight. | N/A | Yes |
| Battery Capacity Total energy the battery can store. | 2 V, 8 AH | 12 V, 8 AH |
| Battery Warranty Warranty period for the battery. | N/A | 2 Years |
| Suspension Front | WP APEX USD forks, 43mm diameter | WP APEX USD forks, 43 mm diameter |
| Suspension Rear | WP APEX Monoshock, 10-step preload adjustable | WP APEX Monoshock, 10 step adjustable |
| Stepup Seat | N/A | Yes |
| Additional Features | Quickshifter+, Ride-by-wire | N/A |
| Navigation A feature that provides turn-by-turn directions on the two-wheeler display or connected device. | Yes | N/A |