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ROCK MACHINE eRokk B90T

With a Bosch Performance Line CX motor and a battery with a range of up to 150 km, this e-bike offers performance, comfort and reliability for off-road riding. Equipped with quality components such as RockShox forks, Shimano gears and practical accessories for a safe and comfortable ride.

Rider's height: 165 cm

150

210

Recommended size *:
17 - 18" (M)

*The values provided are only indicative.

Price before discount: 3 599 €

3 599 €

You save 0 €

2 999 € excluding VAT
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Discount when buying 2 or more e-bikes: 5%
Engine

BOSCH Performance Line CX Smart System

Engine power

85 Nm

Battery capacity

750 Wh

Gearbox

10 speeds

Wheels

29"

Shock absorber travel

100 mm (front)

rock machine erokk b90t

axa lock

AXA Block XXL

Robust frame bike lock that offers a high level of security thanks to hardened steel and anti-drill protection. It is also ideal for bicycles with wider tyres (e.g. e-bikes and city bikes). With the option to attach an additional chain or cable, you can easily increase security by attaching the bike to a fixed object. The lock has a practical ergonomic design and allows easy operation.

Shimano Cues 1x10

a 10-speed shifting system that allows quick and precise gear changes for a smooth ride. Linkglide technology offers greater durability and longevity than other drives. Ideal for demanding cyclists.

shimano cues shifter

 

The Rock Machine eRokk B90T is an e-bike designed for demanding cyclists looking for reliability and performance on any terrain. With a Bosch Performance Line CX motor with 85Nm of torque and a Bosch PowerTube 750Wh battery, it offers a range of up to 150km. The bike is equipped with a Bosch Kiox Smart System display and Bosch LED Remote, making it easy to control and adjust performance while riding.

For a smooth ride on a variety of surfaces, the bike features a RockShox Judy Silver air-sprung fork with 100mm of travel and Rubena Cheetah 29x2.35" tires for excellent traction. High-quality Shimano MT200 brakes ensure safe stopping, even on the toughest roads. In addition, the bike is fitted with 1x10 Shimano Cues, which provide a wide gear range (11-48 teeth) for smooth shifting and optimal performance.

The eRokk B90T is equipped with practical extras including Alloy Full Cover Fenders, AXA lights, a Delta Carrier for comfortably carrying up to 27kg of cargo and an AXA Block XXL lock for secure parking.

This e-bike is the perfect choice for anyone looking for a powerful and comfortable machine for long trips and adrenaline-pumping off-road rides.

Need help choosing the right e-bike? Use our e-bike selection guide or contact us directly.

E-bike range calculator

500 Wh
300 Wh 650 Wh 1000 Wh
75 Kg
50 Kg 95 Kg 140 Kg

Dominant route profile:

Flat

Flat

Medium

Medium

Hills

Hills


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

 

Motor Bosch Performance Line CX 5. generace

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.

More information

Battery BOSCH POWER TUBE 750

BOSCH POWER TUBE 750

Original, high-capacity integrated battery BOSCH PowerTube 750. It enables mountain and trekking e-bikes to travel  really long distances. Thank to its compact size and minimalist design, the battery is integrated into the e-bike to achieve optimum effect. 

  • Compatibility only for Bosch Performance Line CX Smart System (BES3) - model year 2022 and newer
  • Length: 481.3 mm
  • Horizontal and vertical variants - they differ in the way the battery is mounted in the frame.
  • The integrated BMS ensures long range and durability.
  • It has no memory effect and will not self-discharge.
More informations

Display Bosch KIOX 300

Display Bosch KIOX 300

The modern and powerful Bosch Kiox 300 display provides advanced features including performance monitoring, navigation and smart device connectivity. It offers a clear display of key information and intuitive controls to enhance the driving experience. The display is designed to withstand scratches and impacts. Bluetooth and ANT+ connectivity. The Smart System is fully networked and always up-to-date thanks to regular wireless software updates. It offers useful support such as push assist or Hill Hold - automatic protection against unwanted reversing.

More information

Manufacturer Rock Machine

The same great passion that led the early enthusiasts to build the first e-bike always leads them forward - to enjoy the joy of creating the best e-bikes and bring them to others. Rock Machine is a lifelong passion and mission of the designers of this company and the same great feelings you'll get from riding their e-bikes. Everyone loves an active lifestyle, so it's no wonder that e-bikes have been involved since 1994.

Rock Machine E-bikes

 

 

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Parameters

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General

Model year 2025
Brand Rock Machine
Frame size Frame M, Frame L
Load capacity 120 kg
Colour Blue
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Motor

Engine manufacturer Bosch
Engine type Bosch Performance Line CX Gen. 5 - Smart System
Torque 85 Nm
Centre engine Yes
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Battery

Charger Bosch 4A
Battery capacity 700 - 799 Wh
Precise capacity 750 Wh
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Suspension

Front fork RockShox Judy Silver TK, Tapered, Lockout / 100 mm
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Components

Saddle SELLE ROYAL Essenza Moderate
Saddlebag Odpružená, One1 Alloy, ø 30,9 mm
Front hub Shimano HB-TC500-15-B, 15x110mm
Rear hub SHIMANO FH-QC300-HM, 36H, CL, M10X135mm, QR Type
Grips Herrmans Grips
Coats Rubena Cheetah 29×2,35"
Racks STARS J30D, Disc, 32H
Extender ONE1 TDS-C342 Alloy, 31.8xE45mm, +3°
Handlebars ONE1 Alloy, šířka 760 mm
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Transmission

Sorting Shimano SL-U6000-10R CUES
Number of gears 1×10
Shifter SHIMANO Cues U6000
Cassette Shimano CS-LG300 10spd 11-48
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Brakes

Front brakes Shimano MT200, hydraulic, 180 mm
Rear brakes Shimano MT200, hydraulic, 180 mm

Questions

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