4EVER Exstream Elite 820
A mountain e-bike that is suitable for sporty riders looking for a reliable bike with a long range, powerful motor and modern equipment for more demanding use. With a Brose S-Mag motor and 820Wh, it offers a smooth ride, long range and reliable performance.
Brose Drive S-Mag
90 Nm
820 Wh
12 speeds
29"
120 mm (front)


The SR SUNTOUR XCR34 29B AIR 15 100 RLO fork offers a combination of modern technology and robust design. It uses air suspension that allows fine tuning of the fork stiffness according to rider weight and terrain. It has 100mm of travel, which provides ample shock absorption and bumps on and off road. The Remote Lockout (RLO) feature allows the fork to be locked directly from the handlebar. 34mm internal legs increase the fork's stiffness.
The SCHWALBE Smart Sam 2.25 tyres are known for their versatility and reliability on various types of terrain. Thanks to its innovative design and the use of high-quality materials, it provides excellent traction. The Smart Sam stands out with its unique pattern that combines low rolling resistance with excellent grip. It is made of Addix compound that is optimized for balanced performance. The tire is equipped with a protective layer against punctures.

4EVER EXSTREAM ELITE 820 is a powerful mountain e-bike designed for riders who demand performance, reliability and long range.
It features a combination of state-of-the-art technology and cutting-edge components to deliver exceptional performance and an unforgettable riding experience. This model is equipped with the timeless Brose S MAG engine, which offers fantastic handling characteristics and adapts to your exact needs. The motor is renowned for its quietness and precise response, ensuring smooth and efficient assistance with every pedal stroke.
The Brose Allround's small and clear display allows you to easily switch between the different modes of electric motor assistance, allowing you to optimise performance according to your current needs and terrain.
The e-bike also features fixed axles and BOOST technology, which improves the stiffness and stability of the entire e-bike. High-quality hydraulic brakes provide excellent braking performance in all conditions, enhancing your safety and control. It is equipped with a reliable Suntour XCR 34 Air suspension fork with 120mm travel and handlebar lockout. This fork effectively absorbs uneven terrain, contributing to a comfortable ride and improving bike control even in challenging terrain.
- It is powered by a Brose S-Mag mid-motor with 90 Nm of torque, for smooth and responsive assistance even on rough terrain.
- The capacity of the integrated BMZ V10 frame battery is 820 Wh (22.8 Ah), an excellent energy supply for longer trips or more demanding routes.
- The model is equipped with 29″ diameter wheels, which promotes stability, traction and comfort on the terrain.
- Shifting is done with a 1×12 system (e.g. Shimano Deore RD-M6100), and the components are fit for purpose for mountain use.
- The e-bike has an "ALU E7005 BOOST + battery integrated" frame construction, which allows for elegant battery integration and modern geometry.
User benefits:
- High motor torque allows you to tackle steep climbs with comfort.
- The large battery capacity means you don't have to worry about going up higher elevations or going on longer trips.
- the 29″ wheels and quality frame increase safety, stability and riding comfort.
- The equipment meets the demands of general mountain use - ideal for off-road riding.
This model is ideal for training and endless cycling fun, whether you prefer fast flat rides or challenging mountain trails. It's designed to deliver maximum comfort, performance and reliability so you can focus fully on the joy of riding.
E-bike range calculator
Flat
Medium
Hills
The e-bike range is approximately
*Factors affecting total range include technical condition of the e-bike, battery age, ambient temperature, headwind, and riding technique

Motor Brose Drive S-Mag
The powerful Brose Drive S-Mag motor is the right for sports e-bikers. A particularly sensitive response enables peak performance on demanding routes. Thanks to the innovative magnesium case, it weighs only 2.9 kg and offers maximum support of up to 410 percent.
Brose Drive S Mag naturally supports the rider in every driving situation and, thanks to a precise sensor system, responds well to the individual driving style. Huge torque up to 90 Nm and very precise power dosing.

Battery BMZ V10
The BMZ V10 Intube is BMZ's latest integrated 725 Wh lithium-ion battery with a stylish look. The V10 delivers the largest power capacity in its dimensions, making it the best power-to-weight battery on the market. You will literally be thrilled by the result of this powerful battery. The combination of power and energy reserve makes the BMZ V10 battery one of the best components of an e-bike.

Brose Allround display
New Brose "Allround" display in a clear design. Very easy to read and with all the important features. Minimalist and efficient with 14 functions! The 1.5" display can be installed on the right or left, making it the perfect all-in-one style solution. Slight curvature prevents extreme reflection and is therefore easy to read in any weather.
Display type: TFT color display
Dimensions: 44 mm x 37 mm x 50 mm
Protection class: IPX7 (HMI) dustproof, splashproof
Weight with cable: 50 g

The Czech Republic's traditional manufacturer 4EVER offers off-road and trekking e-bikes using Bafang and Brose motors made in Germany. E-bikes from 4EVER are excellent machines with above-standard battery capacity and apealing design. GREATEBIKE.EU offers a complete range of 4EVER e-bikes and a branded repair shop.
Contact: 4EVER, s.r.o., Moravska 842, 742 13 Studenka, Czech republic, e-mail: bike@4ever.cz, phone: +420 556 402 639, web: www.4ever.cz
Parameters
General
| Model year | 2025 |
| Weight including battery | 23,5 kg |
| Brand | 4EVER |
| Frame size | Frame 21", Frame 19", Frame 17", Frame 15,5" |
| Load capacity | 120 kg |
| Colour | Chameleon, Matt foggy |
Motor
| Engine manufacturer | Brose |
| Engine type | Brose Drive Unit S-Mag, Brose S-Mag |
| Torque | 90 Nm |
| Centre engine | Yes |
| Display | BROSE Allround |
Battery
| Precise capacity | 820 Wh |
| Battery capacity | 800 - 899 Wh |
| Charger | 42V/4Ah |
Transmission
| Sort by | Shimano SL-M6100, 12 speeds |
| Cassette | Shimano CS-M6100-12, 10-51 teeth, 12-speed |
| Shifter | Shimano Deore RD-M6100 |
| Number of gears | 1x12 |
Components
| Front hub | Shimano HB-MT410 Boost 15mm |
| Coats | Schwalbe Smart Sam 29x2,35 |
| Rear hub | Shimano FH-MT410 Boost 12mm |
| Saddlebag | 4EX sand blasted ø31,6 mm |
| Saddle | Selle Italia X3 |
| Racks | Mach1 Cross-R 27 29" |
| Handlebars | 4EX sand blasted 740 mm |
| Extender | 4EX sand blasted |
Brakes
| Front brakes | Disc brakes SHIMANO MT201 (180 mm) |
| Rear brakes | Shimano BR MT201, hydraulic, 160 mm |
Suspension
| Front fork | SUNTOUR XCR34 AIR 29BOOST 15 RLO |
| Fork travel | 120 mm |
Questions
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