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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

Brand KROSS
Country of origin of the brand Poland
Sport Bicycles
Gender Male, Woman
Season Year-round
Leading colour Yellow
Model/product code Esker 4.0 KREK4Z28X20M007804
Code 2000201179

Frame

Frame material Steel

Components

Handlebar material Aluminium
Handlebar stem material Aluminium
Grips FIZIK
Depreciation No
Rudders FSA ORBIT NO.9
Fork material Carbon fibre
Saddle Selle Royal Comfort Groove
Frame material Aluminium

Drive

Type of derailleur Mechanical
Derailleurs 2x10
Number of gears 20
Front derailleur (model) Shimano GRX RX400
Rear derailleur (model) SHIMANO GRX RX400
Handles Shimano GRX ST-RX400
Suport FSA MEGAEXO BB-4000
Crank mechanism FSA OMEGA MODULAR 46-30T
Cassette / Freewheel SHIMANO CS-HG500-10 11-34T
Chain Shimano HG54

Brakes

Brakes (model) SHIMANO GRX RX400 Hydraulic Disc
Brake type Hydraulic discs
Brake discs 160 mm front / 160 mm rear

Wheels

Wheel size 28"
Wheels Aluminium
Tyres WTB RESOLUTE COMP 700x42C
Hubs SHIMANO RS470

Additional information

Pedals included No
Weight of bike (estimated) 11,6 kg

Warnings and producer's data

Warnings The manufacturer reserves the right to change specifications, materials and equipment, so please refer to the current technical description on the product sheet below. The photos are for illustrative purposes only.
Producer KROSS S.A. | ul. Leszno 46, 06-300 Przasnysz, Polska | kross@kross.pl

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

Gravel bike KROSS Esker 4.0 yellow/orange/shine

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.

Gravel bike KROSS Esker 4.0 yellow/orange/shine

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.

Gravel bike KROSS Esker 4.0 yellow/orange/shine

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

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Gravel bike KROSS Esker 4.0 yellow/orange/shine

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Size M Sizes table
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Sizes table

    Below you will find information that will help you choose the right size when purchasing a KROSS bicycle.

    Size M (20") 28"
    Height (cm) 168-178
    Wheel size 28"
    FS Frame size (inches) 20
    ST Seattube (mm) 510
    TT 530
    HT Head tube length (mm) 120
    SA 74
    HA 71
    CS Length of rear fork (mm) 435
    WB Wheelbase (mm) 1018
    REACH (mm) 371
    STACK (mm) 554
    BB DROP (mm) 70
    Weight (kg) 11,8

    The stated weight of the bicycle refers to the serially painted frame, and the actual weight of the purchased bicycle may vary slightly depending on the paint used, color, and weight differences between components.

    €1,359.00
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