Need help? Lukas is at your service!
BULLS Sonic EVO SX Dakar
For everyday use, for off-road and trail riding. Highly developed carbon frame, ultra-light Bosch Performance SX motor, slim CompactTube battery with 400 Wh capacity, reliable Shimano brakes and front suspension fork. Front lighting with sensor and daytime running lights.
Bosch Performance Line SX
55 Nm
400 Wh
12 speeds
29"
120 mm
Monkey Link is a unique magnetic system that allows easy attachment of devices as well as their quick removal. This can be used for headlights, rear light and mudguards too. It is powered directly from the main battery and controlled from display
Shimano BR-MT420 hydraulic disc brakes offer balanced power and control.They are designed to deliver strong stopping power and reliable performance in a variety of terrain conditions, which is key to safe and efficient riding. The four-piston design offers superior braking performance and improved modulation. Another advantage of these brakes is their ability to effectively manage heat. Caliper cooling technology and compatibility with Shimano Ice Technologies brake pads to help dissipate heat and maintain stable braking performance.
E-bike range calculator
The e-bike range is approximately
*Factors affecting total range include assist mode settings, technical condition of the e-bike, battery age, ambient temperature, headwind, and riding technique
Lightweight, agile and ready for any challenge – the BULLS Sonic EVO SX Dakar pushes the limits of modern e-biking.
It strikes a perfect balance between low weight, efficiency, and a sporty character. Weighing just 20.5 kg including battery, it ranks among the lightest fully equipped trail e-bikes in its class.
Power comes from the new Bosch Performance Line SX – a sport-tuned motor delivering 55 Nm of torque, offering ideal support with a natural pedaling feel. The compact 400 Wh battery gives the bike excellent handling and a lively ride character, with enough capacity for longer trips and fast-paced training rides.
The RockShox 35 Gold RL air fork with 120 mm travel ensures smooth suspension over rough terrain while keeping the bike under control at high speeds. The precise Shimano Deore XT 12-speed drivetrain with a wide-range 10–51T cassette tackles steep climbs and fast descents with ease.
Powerful Shimano BR-MT420 four-piston hydraulic brakes with 203 mm front and 180 mm rear rotors provide confident braking in all conditions. A Limotec Alpha Series ultra lite dropper post and ergonomic Rumble Altimate cockpit enhance rider comfort and control.
Schwalbe G-One Allround 29 × 2.25" tires offer versatile grip on asphalt, gravel, and light off-road trails. With a maximum load of 130 kg, this e-bike is suitable for heavier riders or carrying gear. The BULLS Sonic EVO SX Dakar is an excellent choice for sporty riders seeking a powerful, lightweight, and fully equipped e-bike for all-around use.
Need help choosing the right e-bike? Use our guide to choosing an e-bike or contact us.
Carbon fibre
E-bikes that use carbon fiber are a common choice among amateur and professional cyclists. Previously, it was mainly road e-bikes, but today you can enjoy the benefits of carbon on almost any type of e-bike. It remains an ideal choice among lovers of fast driving and off-road driving. The main advantage of e-bikes with a carbon frame is exceptional shock and vibration damping, they resist corrosion and wear very well and, compared to other materials, they excel in their low weight.
BOSCH Performance Line SX
Bosch Performance Line SX. Powerful and dynamic motor for intuitive handling and a unique driving experience. Innovative body and software. Although the motor has less torque - 55 Nm - it can deliver up to 600 W of power, the best value in the most compact design. The weight of the motor is limited to just 2 kg.
Modes and level of assistance: Turbo: 340 %; eMTB: 140–340%; AUTO: až 340%; SPRINT: 60-280%; TOUR+: 60-340%; TOUR: 140% Eco: 60 %
Battery Bosch CompactTtube 400 Wh
Slim, integrated and compact battery. It fits seamlessly without affecting the aesthetics and handling of the e-bike. The CompactTube 400 battery offers the highest energy density of any Bosch eBike battery with its innovative battery cell technology.
With innovative battery cell technology, it offers the perfect combination of energy density, compact design and durability. With its 400 Wh, it provides a reliable power source for a variety of cycling adventures. It offers a great balance between size and performance. With a weight of just under 2kg, it also adds minimal weight to the electric bike, making it easier to handle and more comfortable for longer rides.
Bosch Top-tube System Controller w/ mini remote
Control unit for e-bikes with intelligent system. The range of functions and information is limited - so you have a quick overview that won't distract you while you ride. Integrated into the top tube - it's hardly noticeable and ideal for sporty trips and design-oriented e-bike fans.
LEDs indicate the riding mode and battery charge level in different colours. Made of durable material and protected from bumps and scratches. With just two buttons you can control the most important functions of your e-bike - switch on, switch off and change the riding mode.
With the Mini Remote you can operate the control unit even more safely and conveniently. With the Mini Remote on, you can also control the display or use your smartphone as a display.
BULLS is one of the world's leading manufacturers of e-bikes. They introduced the first e-bike in 2010 and since then they are poving to be experts every year with new models just getting better and better. They are best klnown for their great combination of quality, equipment and beautiful design. Quality and precise engineering is obvious right from the start.
Very popular are off-road all-suspension eMTB e-bikes with the latest motors and high battery capacity.
Parameters
General
| Model year | 2025 |
| Weight incl. battery | 20,5 kg |
| Brand | Bulls |
| Frame size | Frame L, Frame S, Frame XL, Frame M |
| Colour | Dark grey |
| Load capacity | 130 kg |
Motor
| Engine manufacturer | Bosch |
| Engine type | Bosch Performance Line SX |
| Torque | 55 Nm |
| Centre engine | Yes |
Battery
| Charger | 2 A (included) |
| Battery capacity | 400 - 499 Wh |
| Precise capacity | 400 Wh |
Suspension
| Front fork | Rock Shox 35 Gold RL, 120mm |
Components
| Saddle | Prologo Proxim 400 Wide |
| Saddlebag | Limotec, Alpha Series A1-UH ultra lite 125 mm |
| Grips | Bulls Proxim |
| Handlebars | Rumble Altimate |
| Extender | Rumble Altimate |
| Coats | Schwalbe G-One Allround Performance, 29 x 2.25" |
Transmission
| Shifter | Shimano Deore XT RD-M8100 shadow+ |
| Sorting | Shimano Deore SL-M6100, Rapidfire Plus |
| Cassette | Shimano Deore CS-M6100-12, 10-51T, 12-speed |
| Number of gears | 1x12 |
Brakes
| Rear brakes | Shimano BR-MT420, hydraulic, 180 mm |
| Front brakes | Shimano BR-MT420, 4-piston, hydraulic, 203 mm |
Questions
Please provide your contact information and in the field Message enter your question and we will get back to you shortly.