BULLS Sonic AM 3
Experience mountain biking in a new dimension! With the Bosch Performance Line CX Gen. 5 motor with 85 Nm of torque and an 800 Wh battery, you'll conquer even the toughest trails. The premium RockShox suspension and stylish bronze design will have you ready for any adventure.
Bosch Performance Line CX GEN5
85 Nm
800 Wh
12 speed
29"
150 mm (front)
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
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
The BULLS Sonic AM 3 is a top-of-the-line electric bike that combines modern technology, performance, and comfort for demanding cyclists. This model is perfect for mountain biking, technical trails, and long trips, where you’ll appreciate its reliability and power in every situation.
At its heart is the Bosch Performance Line CX Gen. 5 - Smart System motor, delivering 85 Nm of torque and smooth power even on challenging terrain. Paired with the Bosch PowerTube 800 Wh battery, it offers an impressive range, and with the Bosch 4A charger, you can quickly recharge and be ready for your next adventure.
The frame is complemented by top-notch suspension – the RockShox Lyrik Select RC front fork with 150 mm travel and the RockShox Deluxe Select+ RL rear shock with 140 mm travel, ensuring maximum comfort and stability even on rocky trails.
The bike features carbon handlebars Rumble Altimate PRO Carbon and a stem RUMBLE Altimate Pro Carbon, enhancing control and handling. Prologo Proxim Cush grips and the Prologo Proxim 400 Wide saddle provide comfort even on longer rides.
Precise and fast shifting is handled by the electronic SRAM S-Series Eagle AXS system, paired with the SRAM Eagle 70 Transmission 10-52T cassette, offering a wide gear range for any terrain. The hydraulic disc brakes MAGURA Gustav Pro with 203mm rotors deliver outstanding braking performance, even in extreme conditions.
The SCHWALBE Magic Mary Performance 29x2.40 tires provide excellent traction across various surfaces, making them ideal for muddy, rocky, or loose trails.
The BULLS Sonic AM 3 is the perfect choice for those seeking uncompromising quality, performance, and reliability in mountain biking. This model offers the ultimate combination of modern technology, premium components, and an attractive design in an elegant bronze color.
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 CX 5th generation engine
The 5th generation motor offers 85 Nm and a peak power of 600 W. Thanks to the magnesium housing, it is lighter (2.8 kg) and quieter. The new mounting system makes installation easier. Improved sensors measure rider inputs more accurately, ensuring a more natural power transfer. The motor has hill-start and walk assist for added comfort. Lower weight improves maneuverability and component durability. Auto mode automatically adjusts terrain assistance. Compatibility with Bosch smart systems allows tracking of ride details, making planning and the ride itself easier.

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.
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Parameters
General
Model year | 2025 |
Brand | Bulls |
Frame size | Frame XL, Frame M, Frame L, Frame S |
Colour | Bronze |
Load capacity | 120 kg |
Motor
Engine manufacturer | Bosch |
Engine type | Bosch Performance Line CX Gen. 5 - Smart System |
Torque | 85 Nm |
Centre engine | Yes |
Battery
Charger | Bosch 4A |
Battery capacity | 800 - 899 Wh |
Precise capacity | 800 Wh |
Suspension
Front fork | RockShox Lyrik Select RC, 1.8 Steerer, 150 mm |
Components
Saddle | Prologo Proxim 400 Wide |
Saddlebag | LIMOTEC Alpha |
Grips | Prologo Proxim Cush |
Handlebars | Rumble Altimate PRO Carbon |
Extender | RUMBLE Altimate Pro Carbon, width: 780 mm, Backsweep: 9° |
Coats | SCHWALBE Magic Mary Performance black, 29x2,40 |
Transmission
Sorting | SRAM S-Series Eagle AXS |
Cassette | SRAM Eagle 70 Transmission 10-52T |
Shifter | Sram EC AXS Rocker |
Number of gears | 1x12 |
Brakes
Rear brakes | MAGURA Gustav Pro, hydraulic, rotor 203 mm |
Front brakes | MAGURA Gustav Pro, hydraulic, rotor 203 mm |
Questions
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