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2009856 / 54293378171226

Product Details

Excellent condition approved used bike with little to no signs of use

Colnago G4X Shimano GRX Di2 Gravel Bike

The Colnago G4-X Gravel Bike is built for speed, stability, and control on mixed terrain. Evolving from the G3-X, it features refined geometry for confident handling on descents, clearance for tyres up to 45 mm, and a lightweight full carbon frame and fork.

Colnago's versatile drivetrain compatibility

The G4-X is compatible with both 1x and 2x drivetrains, mechanical or electronic shifting, and uses a threaded T47 bottom bracket for durability and easy maintenance.

G4-X's adventure-ready features

A UDH rear hanger and four mounting points make it ready for long-distance and bikepacking setups. The UCI-approved cyclocross frame and flared integrated cockpit ensure it performs in competitive and adventurous scenarios alike.

 

  • Certified Quality & Peace of Mind
    Every bike is meticulously inspected to the highest safety standards and comes with a one-year warranty*, ensuring reliability and performance you can trust.
  • Premium Bikes, Lower Prices
    Own a high-end bike for less – get access to top-tier brands and models at a fraction of the cost, making performance cycling more affordable.
  • Sustainable & Eco-Friendly Choice
    Choosing a pre-owned bike helps reduce waste and extends the life of quality bicycles, making it a greener way to ride.
  • Hassle-Free Trade-In & Upgrade
    Easily part-exchange your old bike for an upgrade, making it simple to switch, save, and keep riding the best bike for your needs

Approved Used Warranty Information

Features
  • Frame: Colnago G4X 2025 - 48cm
  • Fork: Stock Colnago G4X Carbon Fork
  • Stem: Colnago RS10 Alloy - 90mm
  • Handlebar: Deda Superzero Gravel Alloy - 40cm
  • Levers/Shifters: Shimano GRX RT-M800, 160 mm rotor
  • Front Derailleur: Shimano GRX FD-RX820 2x
  • Rear Derailleur: Shimano GRX RD-RX820 12 speed
  • Cassette: Shimano GRX CS-HG710 11-36T 12 speed
  • Crankset: Shimano GRX FC-RX820 48-31T 2x, 170mm cranks
  • Wheels: Fulcrum Rapid Red 900 DB 622x22
  • Tyres: Pirelli Cinturato 700-40C tube-type
  • Saddle: Selle Italia Model X
  • Seatpost: Stock Colnago Carbon
  • Pedals: Available to be purchased separately
Specifications
Model
G4X
Bottom Bracket Standard
T47
Brakes [Kind]
Hydraulic Disc
Brakes [Maker]
Shimano
Brakes [Model]
GRX RT-M800
Cassette [Gearing]
11-36
Cassette [Maker]
Shimano
Cassette [Model]
GRX CS-HG710
Chainring [Gearing]
48–31
Condition Grade
Like New
Crank [Maker]
Shimano
Crank [Model]
GRX FC-RX820
E-Bike
No
Family
G4X
FD [Maker]
Shimano
FD [Model]
GRX FD-RX820
Fork [Brake Type]
Disc
Fork [Maker]
Colnago
Fork [Material]
Carbon
Fork [Model]
G4X Carbon Fork
Fork [Wheel Size]
700c
Frame [Hanger Standard]
UDH
Frame [Material]
Carbon
Frameset
No
Gearing [Configuration]
2x
Gearing [Kind]
Conventional
Gender
Unisex
Handlebar [Kind]
Drop
Handlebar [Maker]
deda
Handlebar [Shape]
Drop bar
Rack Mounts
Yes
RD [Maker]
Shimano
RD [Model]
GRX RD-RX820
Saddle [Maker]
Selle Italia
Seatpost [Maker]
Colnago
Seatpost [Material]
Carbon
Shifters [Maker]
Shimano
Shifters [Model]
GRX Di2
Shifting
Electronic
Stem [Maker]
Colnago
Stem [Material]
Aluminium
Suspension Configuration
Rigid
Tires [Maker]
Pirelli
Wheels [Configuration]
Front+Rear
Wheelset [Maker]
Fulcrum
Wheelset [Model]
Rapid Red 900 DB
Mileage / Usage
Lightly used
Product code
2009856 / 54293378171226
Size Guide
4850525456
A563584604625639
B480500520540560
C529540550565582
D513525532546564
E74.5°74°73.57°72.83°72.71°
F71.52°71.62°71.92°72.49°72.88°
G137156173190202
H4343434343
I408410410412414
J-----
K542562579597610
L378378379380392
Colnago C64 Road Bike (High Geometry) Size Guide

If you fall between sizes, we recommend experienced riders selecting a smaller frame which will offer faster handling. A larger bicycle offers more stability.

Should you have any specific questions, please contact us for information and talk to one of our experienced members of staff.

A: Seat Tube (CTR-TOP)

B: Seat Tube (CTR-CTR)

C: Effective Top Tube

D: Actual Top Tube

E: Seat Angle

F: Head Angle

G: Head Tube

H: Stack

I: Chainstay

J: Wheelbase

K: Stack

L: Reach

* All measurements in mm unless otherwise stated

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Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

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