Expert-tested.

Multiple independent tests highlight the outstanding quality of the RCB GK4: lightweight portability, quick folding, comfortable riding and reliable handling performance for urban commuting and everyday cycling.

RCB GK4 Size

Size And Fit(Suitable for height:140cm (55.12'')- 190cm(74.8''))

A. Overall length of the bicycle in unfolded state

1490mm(58.66'')

B. Handlebar height adjustment range (vertical distance from the ground to the top of the handlebars)

960mm(37.79'')-1080mm(42.51'')

C. Front wheel diameter

510mm(20'')

D. Wheelbase length

1000mm(39.37'')

E. Minimum pedal height from the ground

120mm(4.72'')

F. Shortest distance from the seat to the bottom bracket

660mm(25.98'')

G. Longest distance from the seat to the bottom bracket

915mm(36.02'')

O. Length of the folding axle in the middle of the frame

560mm(22.05'')

L. Thickness of the folded section of the frame after folding

350mm(13.78'')

N. Overall height of the bicycle in folded state

625mm(24.61'')

M. Overall length of the bicycle in folded state

840mm(33.07'')

H. Handlebar width

570mm(22.44'')

Net weight

12.5KG

Standard load

100KG

Suitable for height(1cm=10mm)

1400mm (55.12'')- 1900mm(74.8'')

Bike Technical Dimensions

Für wen ist dieses Modell geeignet?

Who Is This E-Bike For?

The RCB GK4 is designed for urban commuters, apartment residents and everyday cyclists who need a lightweight, portable and practical bike for modern city life.

E-Scooter suitable for adult commuters and leisure riders

Which Riders Is This Folding Bike Suitable For?

  • Urban Commuters

    Perfect for daily trips to work, university or city destinations with a compact design that fits busy urban lifestyles.

  • Apartment Residents

    The lightweight 12.5kg frame and folding design make it easy to carry upstairs and store in apartments or offices.

  • Multi-Modal Travelers

    Easily combine cycling with public transportation, including trains, buses and other daily travel options.

  • Convenience-Focused Riders

    Ideal for riders who want a practical bike that is easy to fold, carry and store anywhere.

Recommended Rider Size, Weight & Usage

  • Recommended Rider Height

    Suitable for riders approximately 140–190 cm tall with adjustable handlebar and saddle positions.

  • Lightweight & Portable

    Weighing only 12.5 kg, the GK4 can be easily lifted, carried and transported when needed.

  • Recommended Usage Areas

    Perfect for city roads, bike lanes, commuting routes, parks and weekend leisure rides.

RCB GK4 non-electric folding city bike FAQs

1. How much does the RCB GK4 weigh, and is it easy to carry?

The RCB GK4 weighs only 12.5 kg thanks to its lightweight aluminum alloy frame. Its compact folding design makes it easy to lift, carry upstairs, store in apartments or transport in a car trunk.

2. How quickly can the RCB GK4 be folded?

The RCB GK4 features a quick folding mechanism that allows you to fold the bike easily for storage and transportation. It is ideal for commuters who need a compact bike for trains, offices, apartments or small storage spaces.

3. Is the RCB GK4 suitable for my height?

Yes. The RCB GK4 is designed for a wide range of riders and is suitable for people approximately 140–190 cm tall. The adjustable handlebar and saddle height allow you to find a comfortable riding position.

4. Is the RCB GK4 suitable for daily commuting?

Yes. The RCB GK4 is designed for urban commuting, short trips and leisure rides. With 20-inch pneumatic tires, a 7-speed gear system and front & rear mechanical disc brakes, it provides a comfortable and reliable riding experience for everyday city cycling.

Didn’t find your answer?

Don't hestitate to contact us