KROSS Esker 4.0 is a comfortable gravel bike that combines a durable steel frame with a lightweight carbon fork. With a Shimano GRX 2x10 drivetrain and hydraulic disc brakes, it offers smooth riding, control, and comfort on both asphalt and gravel roads.
Basic data
Frame
Components
Drive
Brakes
Wheels
Additional information
Warnings and producer's data
Gravel bike KROSS Esker 4.0 yellow/orange/shine (KREK4Z28X20M007804)
KROSS Esker 4.0 Gravel Bike Yellow/Orange/Gloss has been designed with enthusiasts of riding in diverse terrains in mind, offering stability and comfort in all conditions. Its steel frame ensures durability and optimal flexibility, effectively absorbing unevenness in the terrain. The carbon fibre used in the fork material further reduces vibrations, ensuring a smooth ride. The Selle Royal Comfort Groove ergonomic saddle guarantees comfort even on long journeys, while the WTB RESOLUTE COMP 700x42C tyres provide grip on various surfaces.
Advanced Technological Solutions
The KROSS Esker 4.0 gravel bike in yellow/orange/gloss utilises an advanced Shimano GRX RX400 derailleur system that allows for smooth gear changes in a 2x10 configuration. The FSA OMEGA MODULAR 46-30T crankset combined with the SHIMANO CS-HG500-10 11-34T cassette offers a wide range of gears, facilitating both steep climbs and fast descents. Shimano GRX ST-RX400 shifters enable precise control, resulting in greater handling over the bike in every situation.
Safety and Control
The KROSS Esker 4.0 gravel bike in yellow/orange/gloss is equipped with hydraulic disc brakes SHIMANO GRX RX400, which provide reliable braking power. The 160 mm diameter brake discs at the front and rear ensure effectiveness in all weather conditions, guaranteeing riding safety. The SHIMANO RS470 hubs and aluminium wheels contribute to the durability and stability of the bike, which is crucial when riding in challenging terrain.
Solid Construction and Warranty
The KROSS Esker 4.0 gravel bike in yellow/orange/gloss features a robust construction due to the use of aluminium in components such as the handlebars, seat post, stem, and wheels, contributing to its lightness and durability. The lifetime warranty on the frame reflects the high quality of the product and the manufacturer's confidence in the durability of their equipment. FIZIK grips add comfort during long rides, significantly enhancing user satisfaction with this bike.
KROSS Esker 4.0 Gravel Bike - Features:
- Steel frame providing durability and flexibility;
- Carbon fibre fork reducing vibrations;
- WTB RESOLUTE COMP 700x42C tyres offering grip on various surfaces;
- Shimano GRX RX400 derailleur system in a 2x10 configuration;
- FSA OMEGA MODULAR 46-30T crankset providing a wide gear range;
- Shimano GRX ST-RX400 shifters for precise handling;
- Hydraulic disc brakes SHIMANO GRX RX400 ensuring reliable braking power;
- 160 mm brake discs front/rear ensuring effectiveness in all conditions;
- SHIMANO RS470 hubs enhancing durability and stability;
- Aluminium components ensuring lightness and strength of construction;
- Lifetime warranty on the frame reflecting high product quality.
Product Details

Steel frame providing strength
The steel frame construction ensures that the bike maintains a high resistance to loads during dynamic riding on gravel and forest paths. The flexibility of the steel helps absorb shocks caused by contact with stones or roots, reducing the vibrations felt by the cyclist. When tackling uneven terrain, the entire frame works under pressure, maintaining stability and allowing for confident manoeuvring even in challenging conditions.

Carbon fibre fork reducing vibrations
While riding on gravel trails, the carbon fibre fork effectively dampens vibrations caused by unevenness. The material's structure minimises the transfer of vibrations from the ground to the bike frame, reducing the rider's perception of bumps. The bike maintains smooth handling even when quickly navigating rocky sections or travelling over hard, potholed roads.

Selle Royal Comfort Groove ergonomic saddle
The shape of the Selle Royal Comfort Groove saddle is designed for optimal fitting to the body during long-distance riding. The contoured surface supports maintaining a natural position, minimising pressure on sensitive points. This design is particularly effective when a multi-hour route requires stable support and reducing the feeling of fatigue while pedalling.
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Gravel bike KROSS Esker 4.0 yellow/orange/shine
Gravel bike KROSS Esker 4.0 yellow/orange/shine
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