Bike configurator

Kolos No.4

Cross, trekking, touring and expedition bike

Open in configurator
Kolos No.4 - touring and expedition bike

Trekking or expedition bike – ideal for bike trips and expeditions beyond the boundaries of everyday life.

Bicycles with a chromium-molybdenum steel frame with a variable wall thickness of the tubes are currently the standard choice of preference for lightweight adventure bikes and expedition bikes used for demanding cycling.

Custom bikes - tailored to your requirements via the online Kolos configurator

Choose bike fittings from quality components – complete lines from Shimano Alivio, Deore LX, Alfine, Tiagra plus Humpert Ergotech, Schwalbe, SKS, Herrmans etc.

Reliability and durability. 3-year warranty. Free warranty service.

We will build you a bike you can always rely on. We provide an extended warranty and take full care of your bike during the warranty and post-warranty service. We take care of you, so you can ride!

Basic configuration:
from € 782 VAT included


Frame & forks

The frame is made from chromium-molybdenum steel (CrMo) with a variable wall thickness of the tubes: Top frame tube – 0.9/0.6/0.9 mm, bottom and seat tube 1.2/0.9/1.2 Head 1 1.8”, seatpost diameter 27.2 mm. CrMo fork Cables fully covered with Bowden, pivots on V-brakes, disk brake adapter, recessed nuts for bottle wire baskets, rear and front Low Rider rack, mudguard fittings.

Hubs and gears

Shimano HB-T4000 front hub, Shimano FH-T4000 rear hub, FC-T4010 cranks, 165MM OCTALINK, 44X32X22T, Shimano RD-T4000 derailleur, ALIVIO, SGS 9-SPEED, Shimano FD-T4000 front derailleur, Shimano SL-M4000 gear levers, Shimano CS-HG400-9, 9-SPEED cassette, 11-12-13-14-16-18-21-24-28, Shimano CN-HG53 chain.


Remerx Dragon 36 hole 28” dual aluminium rims, stainless steel spokes, black 2 mm, Schwalbe Marathon 32/622 tyres with reflective stripe and puncture protection.


Front and rear Shimano Alivio BR-T4000, Shimano Alivio BL-T4000 brake levers.

Other parts

Pedals – Humpert Ergotech, aluminium / rubber
Seatpost – Humpert Ergotech, aluminium
Stem – adjustable Humpert Ergotech Swell, A-head post, 3 pads - height 6 cm
Handlebar – Humpert Ergotech straight
Saddle - VELO Plush
Grips– Humpert Ergotech AKS 072- elastomer, ergonomic
Head set – Humpert Ergotech Cartridge
Stand - Spanninga Libra

Extended 3-year warranty!

Kolos No.4 bikes will not disappoint you in any form. Whether a cross bike, or a more equipped trekking bike or a fully assembled expedition bike, all our models will be a reliable support on your journeys. Kolos No. 4 bikes are sold with an extended 3-year warranty.


Such are Kolos No. 4 bikes

Kolos No. 4 can be used as a universal bike suitable for the city and various types of trips. It is a lightweight cross bike with standard fittings equipped as a trekking bike or as a fully fitted expedition bike for long and demanding roads. The base is a lightweight but sturdy frame from chromium-molybdenum steel, which is available in three sizes to fit your body size. It is strong and flexible – especially suitable for demanding cycling “with a heavy load”.

Select suitable installation and equipment from our wide-ranging offer in our configurator and create your Kolos according to your desire, needs and budget. The result will be a bike with an individual size, colour, fitting and accessories that will entice you to set off on short trips or endless journeys beyond the boundaries of everyday life. The world is out there waiting — it’s up to you how you want to discover it. We recommend that you do it on a bike... And we will be happy to build the right one for you.