| Key Highlights | X440 | Bullet 650 |
|---|---|---|
| Price | ₹ 2.35 Lakh | ₹ 3.65 Lakh |
| Displacement | 440 cc | 647.95 cc |
| Power | 27 bhp @ 6,000 rpm | 34.6 kW @ 7250 rpm |
| Mileage | 35 kmpl | 20.2 kmpl |
| Top Speed | 135 km/h | _ |
| Max Power Highest power the engine/motor can produce. | 27 bhp @ 6,000 rpm | 34.6 kW @ 7250 rpm |
| Max Torque The highest twisting force the engine generates, which affects acceleration and pulling power. | 38 Nm @ 4,000 rpm | 52.3 Nm @ 5650 rpm |
| Compression Ratio Compression ratio is how much the engine squeezes air-fuel before ignition. Higher ratios mean more power; lower ratios improve durability. | 9.5:1 | 9.5 : 1 |
| Cooling System Method used to prevent engine overheating. | Air/Oil Cooled | 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. | 440cc Single Cylinder Air-Oil Cooled Engine | Inline twin cylinder, 4 stroke, SOHC |
| Displacement Engine cylinder capacity measured in cc. | 440 | 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. | 79 mm | 78 mm |
| Engine Oil | 2 L | N/A |
| No Of Cylinders | 1 | 2 |
| Range The maximum distance an electric two-wheeler can travel on a full charge. | 472 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. | 88 mm | 67.8 mm |
| Valve Per Cylinder Number of valves in each engine cylinder. | 2 | N/A |
| Top Speed | 135 Km/h | N/A |
| Tyre Size | Front : 100/90 - 18, Rear : 140/70 - 17 | Front: 100/90- R19/ Rear: 140/70- R18 |
| Wheel Size | Front : 457.2mm, Rear : 431.8mm | Front : 120 mm, Rear : 190 mm |
| Wheels Type | Alloy | Spoke |
| Tubeless Tyre A tyre without an inner tube, reducing puncture risks and maintaining air longer. | Tubed | Tubeless |
| 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. | 1418 mm | 1480 mm |
| Abs (Anti-locking Braking System) Prevents wheel locking during hard braking, improving control and safety. | Dual Channel ABS | Dual Channel |
| Braking Type | N/A | Dual Channel ABS |
| Rear Brake Diameter | 240 mm | 300 mm |
| Fuel Capacity | 13 L | 14.8 L |
| Fuel Reserve | 2 L | N/A |
| Body Type The overall design and shape of the bike (e.g., cruiser, sports, scooter). | Cruiser | N/A |
| Frame The main structure holding the bike together. | Trellis Frame | N/A |
| Ground Clearance Distance between the bike’s lowest part and the ground. | 170 mm | 154 mm |
| Height | N/A | 1155 mm |
| Kerb Weight Bike’s weight with fuel and fluids. | 190 Kg | 243 Kg |
| Length | 2168 mm | 2260 mm |
| Seat Height Distance from the ground to the seat. | 805 mm | 800 mm |
| Width | N/A | 830 mm |
| 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. | No | 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. | Digital | N/A |
| Fuel Gauge Indicates the current fuel level in the tank. | Yes | Digital |
| 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. | 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 |
| Clutch A device that connects and disconnects the engine from the wheels for smooth gear shifts. | N/A | Assist And Slipper Clutch |
| Transmission The entire system that transfers engine power to the wheels (includes clutch and gearbox). | Manual | Constant Mesh |
| 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. | N/A | 12V, 12 Ah |
| Suspension Front | KYB Upside-down Forks 43mm | Telescopic Fork 43mm |
| Suspension Rear | Twinshock Absorbers, 7 Step Preload adjustable | Twin Shock |
| Seat Type The design of the seat that affects comfort and seating position. | Split | N/A |
| Music Control A feature that lets you play, pause, or change music via the two-wheeler's console or connected device. | Via Bluetooth | N/A |
| Navigation A feature that provides turn-by-turn directions on the two-wheeler display or connected device. | Yes | N/A |