Centurion E-FIRE CITY R750.28 EP2
Product information "E-FIRE CITY R750.28 EP2"
Features - Centurion E-Fire City R750 EP2
- Very comfortable aluminium frame with low step-through
- Bosch Active Performance Line Gen.3 motor with 65 Nm torque, particularly suitable for trekking and city
- Easy to read Bosch Intuvia display
- SR Suntour suspension fork with 63 mm travel
- Shimano Alivio 9-speed drivetrain
- Fully equipped with mudguards, lighting system, frame lock, pannier rack and kickstand
- 28" Procraft wheels with Shimano hubs and comfortable Schwalbe Big Apple tires
Highlights
Dropout with speed sensor
To continue the design language and system integration down to the smallest detail, Centurion has integrated the speed sensor of the e-bike into the dropout. Its counterpart sits inconspicuously on the rear brake disk mount. This ensures constant and trouble-free operation.
Sophisticated low step-through
The extremely comfortable step-through offers a high level of safety and makes getting on and off the bike a real pleasure. The slim silhouette and remarkable riding stability are also impressive. To make charging the battery as user-friendly as possible, Centurion has also placed the charging socket high up on the frame, centrally and easily accessible.
Recommended frame sizes
| Frame size: | S | M | L |
| Body size : | 158-173 cm | 166-181 cm | 174-189 cm |
- Manufacturer number: 42137550
- EAN: 4039645500114
- Model Year: 2023
Blumenstraße 49-51
71106 Magstadt
Deutschland
https://www.centurion.de
Centurion E-FIRE CITY R750.28 EP2
Features - Centurion E-Fire City R750 EP2
- Very comfortable aluminium frame with low step-through
- Bosch Active Performance Line Gen.3 motor with 65 Nm torque, particularly suitable for trekking and city
- Easy to read Bosch Intuvia display
- SR Suntour suspension fork with 63 mm travel
- Shimano Alivio 9-speed drivetrain
- Fully equipped with mudguards, lighting system, frame lock, pannier rack and kickstand
- 28" Procraft wheels with Shimano hubs and comfortable Schwalbe Big Apple tires
Highlights
Dropout with speed sensor
To continue the design language and system integration down to the smallest detail, Centurion has integrated the speed sensor of the e-bike into the dropout. Its counterpart sits inconspicuously on the rear brake disk mount. This ensures constant and trouble-free operation.
Sophisticated low step-through
The extremely comfortable step-through offers a high level of safety and makes getting on and off the bike a real pleasure. The slim silhouette and remarkable riding stability are also impressive. To make charging the battery as user-friendly as possible, Centurion has also placed the charging socket high up on the frame, centrally and easily accessible.
Recommended frame sizes
| Frame size: | S | M | L |
| Body size : | 158-173 cm | 166-181 cm | 174-189 cm |
- Manufacturer number: 42137550
- EAN: 4039645500114
- Model Year: 2023
Blumenstraße 49-51
71106 Magstadt
Deutschland
https://www.centurion.de
Configuration
| Frame: | E-Fire City R G2, 28", Aluminium, 1.5" tapered, 10x135mm, Postmount 180mm |
|---|---|
| Frame material: | aluminium |
| Wheel size: | 28" |
| Speeds: | 1 x 9 |
| Colour: | black |
| Fork: | SR SUNTOUR NEX-E25, travel: 63mm, 1-1/8" straight |
| Travel: | 63 mm |
| Brakes: | TEKTRO HD-T275, organic pad |
| Brake discs: | TEKTRO TR180-24, 180mm 6-Bolt |
| Brake levers: | TEKTRO HD-T275 |
| Headset: | VP-J203PES, top ID44/OD50, bottom ID55/61 |
| Stem: | PROCRAFT Adjustable Pro, angle -10 - 60°, length 100 mm |
| Handlebar: | PROCRAFT City Comp, 31.8mm, 640mm, Backsweep 35° |
| Bar grips: | PROCRAFT ERGO Comp II |
| Saddle: | PROCRAFT City II |
| Seatpost: | PROCRAFT Pro, 31.8mm |
| Crankset: | Centurion Comp Gen3, length: 170 mm (XS,S), 175 mm (M,L) |
| Rear derailleur: | SHIMANO Alivio RD-M3100-SGS , 1x9 |
| Gear shifters: | SHIMANO Alivio SL-M3100-R, with gear indicator |
| Cassette: | SHIMANO CS-HG200-9, 11-36T |
|---|---|
| Chain: | KMC E9 silver/black |
| Tyres: | Schwalbe Big Apple 28x2.0" Active line with reflex stripes |
| Front hub: | SHIMANO HB-TX506, 9x100mm, 32H |
| Rear hub: | SHIMANO FH-TX506, 10x135mm, 32H |
| Spokes : | PROCRAFT stainless 2.0 |
| Rims: | PROCRAFT MPD23, IW 23mm |
| Display: | Bosch Intuvia |
| Battery: | Bosch Powerpack 500Wh |
| Charger: | BOSCH Standard Charger, 4A |
| Engine: | BOSCH Active Performance Line Gen3, 65 Nm, 250 W |
| Front light: | TRELOCK LS 230 Bike-i VEO, 20 Lux |
| Backlight: | Trelock LS 611 Duo Flat |
| Rack: | CENTURION Racktime E-Trekking |
| Pedals: | VP VPE-891 |
| Other details: | Schutzblech, Ständer, Glocke, Motorcover: CENTURION Gen3 Drive Cover E-Fire City semi integrated frame, Frame-lock: ABUS Shield 5650 |
| Maximum total weight allowed: | 150 kg (body weight + bike + equipment) |
| Weight: | ab 24.0 kg |
Bosch E-Bike Technology

Bosch Performance Line Gen3
The third-generation Performance Line, also known as Bosch Performance Line Gen3, was launched in 2020 and has been performing reliably on many e-bikes ever since. With a maximum torque of 65 Nm and a maximum support of 300 %, the Bosch drive offers plenty of power for dynamic e-trekking bikes or e-mountain bikes and, in combination with the Bosch Powerpack and Powertube batteries, convinces with a great range. The e-drive is extremely quiet and shines due to its natural and balanced feel. Even in off-mode or faster than 25 km/h, as there is almost no pedaling resistance. The Bosch Performance Line motor ensures maximum riding pleasure in both flat and mountainous terrain which gives you an unmatched e-bike experience.
The most important data of the Bosch Performance Line motor
- The maximum torque of 65 Nm ensures a dynamic acceleration, even in high cadence.
- The powerful motor offers a maximum support of 300 % and is well suited for long distances.
- The Bosch Drive Unit is ready for all challenges and offers support up to a maximum speed of 25 km/h.
Riding modes of the Bosch e-bike System
- Turbo:
- Direct and powerful support up to the highest pedalling rates for sports riding.
- Support level: 300 %
- Max. torque: 65 Nm
- Sport (E-Trekkingbikes) / eMTB (E-MTBs):
- The mode dynamically varies between the Tour and Turbo riding modes.
- Support level: 120 % - 300 %
- Max. torque: 60 Nm
- Tour:
- Uniform support for long stretches, with clear focus on long ranges.
- Support level: 120 %
- Max. torque: 45 Nm
- Eco:
- Effective, but gentle support, designed for maximum efficiency for long ranges.
- Support level: 55 %
- Max. torque: 35 Nm
What are the advantages of the Bosch Performance Line motor?
Sporty riding experience
The efficient and versatile drive provides dynamic acceleration and guarantees an authentic riding experience with minimal pedal resistance, even without support.
Off to a good start
The drive delivers dynamic and sporty acceleration even at low cadences, offering powerful support as soon as you step on the pedals.
Robust to the core
The robust Drive Unit can cope with heavy loads and meets the highest demands in terms of trekking or eMTB use.
Perfect interplay
The multi-sensor concept and fast information processing ensure optimum interaction between riders and their e-bikes.
Quiet enjoyment
The innovative noise-optimised gearbox makes the Performance Line (25 km/h) one of the quietest drives in its class.
Ready for any adventure
Five riding modes make every trip a pleasure. There is a separate eMTB mode for eMountain bikes, also providing acceleration for off-road adventures.
Compact, lightweight design
The innovative drive concept reduces both weight and size. This not only offers e-bikers more style, but also enables them to benefit from agile handling. The Performance Speed Drive Unit weighs in at just 2.9 kg.
Welche Vorteile bietet der Bosch Performance Line Motor?
Der Performance Line E-Bike Antrieb bietet ein sportives Fahrgefühl
Der effiziente und vielseitige Antrieb sorgt für eine dynamische Beschleunigung – und garantiert mit minimalem Tretwiderstand auch ohne Unterstützung ein authentisches Fahrerlebnis.
Stark im Antritt – der Bosch Performance Line Motor
Der Antrieb beschleunigt bereits bei niedrigen Trittfrequenzen dynamisch und sportlich – für eine kraftvolle Unterstützung ab dem ersten Tritt.
Hart im Nehmen
Die robuste Drive Unit hält hohen Belastungen stand und erfüllt höchste Anforderungen an den Trekking- oder eMTB-Einsatz.
Perfektes Zusammenspiel
Das Multi-Sensoren-Konzept und die schnelle Informationsverarbeitung sorgen für ein optimales Zusammenspiel zwischen Fahrer und E-Bike.
Flüsterleise
Das innovative geräuschoptimierte Getriebe macht die Performance Line (25 km/h) zu einem der leisesten Antriebe seiner Klasse.
Fahrmodi für jedes Abenteuer
Was auch immer ansteht, die Fahrmodi machen jede Fahrt zum Vergnügen. Für eMountainbikes gibt es einen eigenen eMTB-Modus, der auch Abenteuer abseits des Asphalts beschleunigt.
Kompakt und leicht
Das innovative Antriebskonzept spart Gewicht und Größe. Damit sind E-Biker nicht nur stilvoll unterwegs, sondern profitieren auch von einem agilen Handling. Die Drive Unit Performance Speed wiegt gerade einmal 2,9 kg.

The Bosch Intuvia Display – the intuitive control center
The Intuvia display can be read in all lighting conditions and the e-bike can be controlled easily and intuitively. Thanks to the separate control unit, your hands remain securely on the handlebar at all times, while the shift recommendation means you always pedal in the correct gear. This preserves the battery and increases your range. Intuvia means you always have all riding data clearly in sight.
Even if you have to push your e-bike on occasion, this can be achieved conveniently with Intuvia. Walk assistance provides support up to 6 km/h. For safety, walk assistance is activated in two stages. Thus, pushing the bike even with bulky items in the basket becomes easier.
What highlights does the Bosch Intuvia Display offer?
Maximum ease of use
Easy operation via the separate control unit.
Ideal for travelling
Even when removed from the e-bike, all important information such as the total distance can be displayed.
Legibility
Good legibility in all lighting conditions, even in sunlight.
Charging station
Intuvia charges your smartphone via the USB port, for example, while you are riding
Light system
If the e-bike light was on when the system was switched off, it is automatically switched on the next time the system is started.
Bosch e-bike batteries – power for many kilometers
Bosch batteries are an efficient, long-life energy source. Thanks to their enormous mileage, long life and intelligent battery management system, Bosch lithium-ion batteries are among the most modern on the market. Bosch e-bike rechargeable batteries combine low weight with ergonomic design and simple handling. The Battery Management System of the high-quality lithium-ion batteries detects potential sources of error and protects cells from overloading. There is a suitable rechargeable battery for every demand and every type of e-bike, from the rack variant, via the frame battery to the integrated solution.
Advantages of the Bosch PowerTube e-bike batteries
Outstanding battery efficiency
For maximum riding pleasure, lithium-ion PowerPacks have maximum energy density with the smallest size and lowest weight on the market.
Simple to store and quick to charge
Modern Bosch lithium-ion batteries do not suffer from memory effect or self-discharge issues. Your battery will charge to 50% in about 2 hours, depending on the charger and PowerPack.
Ergonomic handling
It’s easy to remove and charge at home. The PowerPacks can also be conveniently charged directly on the bike.
No memory effect
Bosch batteries with lithium-ion cells can be charged at any time quickly irrespective of the charging. Interruptions of the charging process do not harm the battery. Complete discharge is not required.
Extremely low self-discharge
Even after long periods of storage, e.g. in winter, the battery can be used without recharging. This means Bosch rechargeable batteries do not need to be recharged after a long break in use. For longer storage, a charge status of approx. 30 to 60% is recommended.
Long life
Bosch batteries are designed for lots of trips, miles and years of service. The intelligent, electronic Bosch Battery Management System (BMS) protects lithium-ion batteries from extreme temperatures, overcharging, and excessive discharge.
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Bosch PowerPack 500The Bosch PowerPack 500 is the same size as and only slightly heavier than the PowerPack 400 but extends the range. The Lithium-ion battery requires about two hours to charge 50% and the PowerPack 500 takes approx. 4.5 hours to charge with the Bosch Standard Charger. In favourable conditions, charged and with the Performance Line Cruise in the mix, tours of up to 90 kilometres are possible. The PowerPack 500 is available for all product lines as a frame or rack battery. |
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Charging speed Bosch PowerPack 500
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Geometry
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