The Ultraviolette F77 and the Tork Kratos R are electric bikes; both motorcycles are available in two variants. The first one has Mach 2 and Mach Racon, and the second has Standard and Urban Trim. Both two-wheelers are quite different from one another in different terms.
The ex-showroom price for the Ultraviolette F77 starts from ₹2.99 lakh and goes up to ₹3.99 lakh, and the same for the Tork Kratos R ranges from ₹1.22 to ₹1.67 lakh. Both of these electric two-wheelers have different engines, which generate distinct torque.
The design of the Ultraviolette F77 and the Tork Kratos R totally vary from one another, and the fuel efficiency also varies. Here, we have discussed the side-by-side comparison for these e-motorcycles; read this article to find out which one aligns with your requirements.
Price, Ownership & Availability
The base ones of F77 and Kratos R cost around ₹3.5 lakh and ₹1.9 lakh; for higher-end, it goes up to ₹4.6 lakh and ₹2.2 lakh, respectively, in New Delhi. Both are eligible for the FAME II subsidy; check the running cost and other comparisons from below.
| Specification | Ultraviolette F77 | Tork Kratos R |
| Running Cost | ₹0.25–₹0.35 per km | ₹0.20–₹0.30 per km |
| Service Interval | 5,000 km or 6 months | 4,000 km or 6 months |
| Bike Warranty | 3 years | 3 years |
| Availability | Across major metros | Limited |
Performance & Motor
Both electric motorcycles come with single-speed transmission, and the motor type for each varies. They are available in the Indian market with powerful motors, whose acceleration timing is quite similar; check specifications from below.
| Specification | Ultraviolette F77 | Tork Kratos R |
| Motor Type | Permanent Magnet AC Motor | Axial Flux PMSM Motor |
| Peak Power | 27 kW (≈36 PS) | 9 kW (≈12 PS) |
| Peak Torque | 90 Nm | 38 Nm |
| Top Speed | 152–155 km/h | 105 km/h |
| Acceleration (0–60 km/h) | ~2.9 seconds | ~3.5 seconds |
The rising modes for them also vary; the UF77 has Glide, Combat, and Ballistic, and for the Kratos R, it is Eco, City, Sport, and Reverse. To ensure safe temperature for the motor and battery, an air-cooling system was added to both these e-bikes.
Battery, Range & Charging
The F77 comes with a 10.3 kWh lithium-ion battery, and the Kratos R with a 4 kWh lithium-ion battery. They are available with regenerative braking, which helps recover energy every time the rider slows down. Comparison for the range and charging timing is available inside the table.
| Specification | Ultraviolette F77 | Tork Kratos R |
| Claimed Range | 307–323 km | 120–180 km |
| Real-World Range | ~200–230 km | ~100–130 km |
| AC Charging | 6–8 hours | 4–6 hours |
| DC Charging | 1.5–2 hours (0–80%) | 1 hour (0–80%) |
The F77 comes with a battery warranty for 5 years or up to 100,000 kilometers, and the Kratos R for only 3 years or up to 40,000 kilometers.
Features & Technology
Both electric bikes are equipped with top-notch features and technology, but are different. They have little similarity, such as both coming with keyless operation and geo-fencing. Check the features and technology comparison by going through the table below.
| Feature | Ultraviolette F77 | Tork Kratos R |
| Instrument Display | 5-inch TFT Screen | Digital LCD Display |
| Connectivity | Bluetooth, Wi-Fi, GPS | Bluetooth Connectivity |
| Mobile App Support | Yes (Ride Data, OTA Updates) | Yes (Ride Analytics) |
| ABS | Dual Channel | Single Channel |
| Traction Control | Yes | No |
| Reverse Mode | No | Yes |
| OTA Updates | Supported | Supported |
| Navigation | Built-in (App Integration) | Via Mobile App |
| Battery Management System (BMS) | Advanced, liquid-cooled | Standard, air-cooled |
| Vehicle Tracking | Yes (real-time) | Yes (via app) |
| Lighting System | Full LED setup | Full LED setup |
Dimensions & Build
In terms of kerb weight, the Kratos R is lighter than the F77. Note that the wheelbase, ground clearance, and seat height totally vary from one another. Check the side-by-side dimensions comparison for both electric bikes from the table available below.
| Specification | Ultraviolette F77 | Tork Kratos R |
| Kerb Weight | 197 kg | 140 kg |
| Wheelbase | 1340 mm | 1336 mm |
| Ground Clearance | 160 mm | 165 mm |
| Seat Height | 800 mm | 785 mm |
| Tyre Size (Front) | 110/70 R17 | 90/80 R17 |
| Tyre Size (Rear) | 150/60 R17 | 120/80 R17 |
| Brake Type | Disc (Front & Rear, Dual ABS) | Disc (Front & Rear) |
| Frame Type | Steel Trellis | Split Trellis |
The F77 is a good option for the performance enthusiasts who are looking for an electric bike with high top speed, long range, and sporty build; and the Kratos R is a great option for daily commuters, as it is affordable, lightweight, and easy to ride.
