Bike configurator

Často kladené dotazy ke kolům KOLOS No.4


What's the frame made from and what's its lifespan?

The frame and fixed forks are made from chromium-molybdenum steel (CrMo) with a variable wall thickness of the tubes welded using TIG technology. Such frames are the current standard for gravel and expedition bikes. They can be successfully used in both a light backpacking mode or cycling “full-load” expeditions combined with Tubus Cargo rear rack and the lowrider Tubus Tara front rack and the set of classic Ortlieb panniers (Back Roller Classic, Rack Pack, Front Roller Classic and Ultimate). Steel is strong as well as flexible, it absorbs vibrations well, it's durable and in case of butted tubes also has a favourable weight. If corrosion is prevented and if the bike is well looked after, the lifespan of the CrMo frames is virtually unlimited and if there's a defect it can be easily solved anywhere with an oxyacetylene torch (ie everywhere).

What is the weight of the bike?

The weight of the bike in the basic configuration with a 58 cm frame size is 13.9 kg.

What is the maximum load capacity of the bike?

The maximum load capacity of the bike including cargo is 180 kg.

What is the maximum load capacity of the racks?

The XLC rear rack has the load capacity of 25 kg, while the XLC low rider front rack can carry up to 5 kg on each side (total 10 kg). The TUBUS Cargo Classic expedition rack has the load capacity of 40 kg. The front TUBUS Tara rack has the load capacity of 15 kg.

What is the advantage of the gear hub?

The Shimano Alfine 8 gear hub is an eight-speed gear with 22,16,14,18,22,16,14 percentage intervals and an overall 307% gear range. The range is similar to the conventional 3x8 speed gears. However, the converter with the gear doesn't offer a front derailleur and therefore it's operated with a single shift lever. The planetary gear principle is also completely different from the classic derailleur. The gears can be operated even if the bike is stationary, which is something to appreciate when accelerating up a hill or in the city traffic. Shimano Alfine 11 has 11 speed gears with 29.2, 13.1, 14.0, 13.9, 13.2, 14.0, 13.3, 14.0 percentage intervals and the total range of 408%.

Where is the bike made?

Production, including individual varnishing of the bikes, begins after the receipt of the order confirmation. Production takes place in our workshop in Prague - Hostivař.

What's the delivery time?

The delivery time for the bikes is three weeks from the receipt of the order confirmation.

How shall I pay?

We accept cash or credit card payments in our Citybikes store, address: Nám. Svatopluka Čecha 3, Prague 10 - Vršovice or Brno - Královo Pole, Hrnčířská 6 (Galerie Sfinx). We accept bank transfer payments. You can also pay the carrier upon "Cash on delivery". The bikes are delivered by Toptrans.

How do you deliver the bike and what's the cost?

Delivery within the Czech Republic is free of charge; delivery to Slovakia is charged at 12.00 EUR and for “Cash on Delivery” to Slovakia there is an additional surcharge of 22.00 EUR. If you wish to ship your bike to another destination, please contact us at

I am worried that my bike will be stolen.

Kolos No. 4 and No. 5 bikes are unique, as they are always tailored to the customer’s requirements. No unique product is easy to be stolen since it can be easily tracked. Each Kolos bike has a frame number and a certificate specifying the components and the colour.

How do you deliver the bike, and will it be assembled?

Each Kolos bike is always shipped fully assembled, adjusted and packed in a large 200 x 130 x 25 cm cardboard box. The only parts that you need to fit yourself are the pedals and in terms of accessories, it is up to you to attach the bag to the racks or to the adapter. You will also need to release the handlebars and turn them in the direction of travel and adjust the seat height. Everything else has been done for you.

And what about service??

A bike service is available in Citybikes s.r.o. stores at nám. Svatopluka Čecha 1348/3, Prague 10 or Brno - Královo Pole, Hrnčířská 6 (Galerie Sfinx).

Kolos® bikes are made to last with maximum durability and maintenance-free operation. If needed, any bike service can handle the repairs. If necessary, you can consult the service with us, whether with the bike owner or with the technician, who can also order the original spare parts.