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3 289.00 €

Rock Machine eRokk B70 City low-step e-bike Matte Limerock Grey

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Our Code: 803.2025.79013

Low-step urban e-bike with 27.5" wheels, Bosch Performance Line CX Smart System motor, 625 Wh battery, range up to 150 km, carrier with a capacity of 27 kg, wide tires, AXA 30 Lux front light.

Detailed Description
Rock Machine

Rock Machine follows the rule: Fun first, and then more fun. From humble garage beginnings in 1994 to the present, you can see Rock Machine bikes on World Cup tracks, but mainly on trails where Rock…

More about the brand Rock Machine
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Low-step urban e-bike with 27.5" wheels, Bosch Performance Line CX Smart System motor, 625 Wh battery, range up to 150 km, carrier with a capacity of 27 kg, wide tires, AXA 30 Lux front light.

Detailed Description
In 2-3 days
An expedition is possible Friday 22. 5. (delivery options)
Price Including VAT 3 289.00 € Recommended Retail Price: 3 291.77 €
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Description

Some parts of this page are translated automatically, so please excuse any imperfections.

The Rock Machine eRokk B70 City is a reliable city e-bike designed for comfortable rides in urban traffic and light off-road conditions.

With a low frame, getting on and off is easy, while the upright position saves your back and provides a great view of the surroundings.

The heart of the bike is a powerful Bosch Performance Line CX Smart System motor with a torque of 85 Nm, complemented by a 625 Wh battery - allowing for a range of up to 150 km. The system can be expanded with an additional battery for longer trips.

The Shimano ESSA 1×8 drivetrain with an 11–45 tooth range is a simple and efficient aid for everyday use. Shimano hydraulic disc brakes ensure reliable braking performance under all conditions, and pedals with a large contact area contribute to increased safety and confidence while pedaling.

The bike is equipped with a rack capable of carrying up to 27 kg and wide tires with low rolling resistance and high grip, ensuring stability and comfort even on less than ideal roads. Additionally, a powerful AXA front light (30 Lux) keeps you visible even in poor visibility conditions.

The Rock Machine eRokk B70 City is the perfect choice for anyone seeking a comfortable, safe, and versatile e-bike for everyday riding.

Baterie - Bosch 625 Wh

Batteries are one of the most valuable components on an electric bike. They often make up 1/3 of the total price of an e-bike. There are several parameters that affect the range of an e-bike: type of terrain, tyre profile, rider weight, assistance used, etc. you can read more in our blog.

The advantage of Bosch batteries is a very high quality BMS (battery management system). Thanks to temperature and voltage sensors, the BMS can switch individual cells on and off to avoid a significant reduction in range and to ensure the longest possible life of the battery itself.

Baterie - Bosch 625 Wh
Bosch Performance Line CX SmartSystem

Bosch Performance Line CX SmartSystem

Bosch motors are among the best in the world of electric bikes. Motors from the German manufacturer stand out for their reliability and quality workmanship. Bosch Performance Line CX (from MY 2022, Smart System is the motor with the maximum 340% boost. It uses a larger (38t) chainring for better power transfer. This motor is very sporty, so it is mainly designed for mountain bikes. The new feature here is the possibility of adding the ConnectModule, which will offer new anti-theft features as well as a connection to the eBike Flow app.

Appropriate use
Unpaved terrain, forest trails and hilly rides - there's no type of terrain you won't be able to keep up with.
Competition
Yamaha PW-X3, Shimano EP8, Brose S MAG, SyncDrive Pro, Panasonic GX Ultimate, or on paper Bafang M500
Parameters
Torque - 85 Nm
Weight - 2.9 kg

 

EAN: 8592842210409

E-bike range calculator

Battery

630 Wh

Rider weight

80 kg

127 km Range*
*

The stated range is approximate. The actual total range is influenced by several factors, such as the selected assistance mode, the technical condition of the e-bike, battery age, ambient temperature, headwind, and riding technique.

Manufacturer: BIKE FUN International s.r.o., Areál Tatry 1445/2, 74221 Kopřivnice, info@bikefunint.com, www.rockmachinebikes.com/en-en

Specifications

Frame Set
Frame

heat-treated aluminum alloy 6061-T6, low-entry

Fork

RST Blaze, Tapered, Lockout / 100 mm

Headset

Acros ZS56/ZS56

Electric Components
Motor

Bosch Performance Line CX, 85 Nm (250 W, 36V), Smart System

Battery Type

BOSCH BATTERY POWER TUBE 625

Charger

Bosch 2A charger

Display

Bosch Purion 200 Smart System

Distance on Full Charge

up to 150 km

Wheels
Tires

WTB Groov-E Comp, 27.5×2.4"

Rims

Stars J30

Hubs

front: Shimano HB-QC300, rear: Shimano FH-QC300

Spokes

Sapim Leader, Stainless Black, safety nipple lock

Drivetrain
Shifters

SL-M315-8R

Rear Derailleur

SHIMANO ESSA RD-U2000

Crankset

One1 EC39-BH4-F13-ISIS

Cassette

SHIMANO, ESSA, 8-SPEED, 11-45T

Chain

KMC e8S

Components
Pedals

flat, glass fiber reinforced nylon

Brakes

Shimano MT200

Rotors

Shimano SM-RT10, ø 180 mm

Handlebars

Velobel, BB, ø 31.8 mm, width 760, 40R, 13° Backsweep

Stem

TDS-C342 Alloy, ø 31.8 mm, e45, +3°

Grips

HERRMANS CLIK DD37

Saddle

Selle Royal Essenza Moderate

Seatpost

Suspension, One1 Alloy, ø 30.9 mm

Extra

bell, front light, fenders, rack, kickstand, lock

Weight

28.00 kg

Colour

Matte Limerock Grey

Frame Size

L (18,5 - 20)

Activity

Electric Bicycles

Designed for

Mens / UNI

Frame Material

Aluminum Alloy

Drive

Bosch Performance Line CX

Battery Capacity

626 Wh

Motor Type

Mid-Mount

Wheel Diameter

27,5"

Brake Type

Disc

Model Year

2025

Colour

White, Grey

The wheel manufacturer reserves the right to change the wheel specifications without any reason. In exceptional cases, the delivered product may differ from the specified specifications and images to improve the availability or functionality of the wheel.

Rock Machine

Rock Machine follows the rule: Fun first, and then more fun. From humble garage beginnings in 1994 to the present, you can see Rock Machine bikes on World Cup tracks, but mainly on trails where Rock…

More about the brand Rock Machine

Do you need help choosing the right product?
Contact us.

Ask a question
+43 144 20070 Mon - Fri: 10:00 am to 15:00 pm
Ladislav - Technical Support
Ladislav Technical Support

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+43 144 20070
+43 144 20070

Mon - Fr: 10 am to 3 pm

info@koloshop24.com
info@koloshop24.com

We will reply within 24 hours