Colnago G4-X Rival XPLR E1 Bicycle - Green

Colnago G4-X Rival XPLR AXS 12v Gravel Bike – Off-Road Performance

The Colnago G4-X Rival XPLR AXS is the gravel bike designed for those who want to push hard even off the pavement. Born from Colnago’s racing experience, it combines lightness, control, and responsiveness to tackle every dirt path at its best.

Fast and controllable gravel

The G4-X was developed with a clear goal: to deliver high performance on gravel roads and mixed terrain. Its strengths are:

• Precise handling to tackle every type of terrain

• High stability even at high speeds

• Excellent downhill handling

• Responsive and lightweight frame for maximum efficiency

The monocoque carbon frame ensures stiffness and comfort, making this bike ideal for both gravel races and long adventures.

Colnago G4-X Rival XPLR Technical Specifications

Frame and Fork

• Frame: Monocoque carbon

• Fork: Carbon for disc brakes, external cable routing, round profile section

SRAM Rival AXS drivetrain

• Shifters: SRAM Rival AXS Disc

• Rear derailleur: SRAM Rival RD-RIV-E-D1

• Crankset: SRAM Rival 40T

• Cassette: SRAM Rival 10-44, 12-speed

• Bottom bracket: T47 SRAM DUB Road

• Chain: SRAM Rival CN-RIV-D1

Brakes

• Front brake: SRAM Rival hydraulic disc, 160 mm – SRAM Paceline rotors

• Rear brake: SRAM Rival hydraulic disc, 160 mm – SRAM Paceline rotors

Wheels and Tires

• Wheels: Vision SC45

• Front tire: Pirelli Cinturato Gravel 40 TLR

• Rear tire: Pirelli Cinturato Gravel 40 TLR

Components

• Saddle: Selle Italia Novus

• Seatpost: Carbon, 0.15 offset, D-Shape section

Note

Technical specifications may change without notice depending on component availability.
Product images are for illustrative purposes only and may not exactly reflect the described features.

Why choose the Colnago G4-X

The Colnago G4-X Rival XPLR AXS is the ideal choice for those looking for a high-performance, modern gravel bike ready for competition. Perfect for gravel racing, endurance, and off-road adventures, it offers the best in control, speed, and reliability.

Do you want to receive your bike ready for use? Don't forget to add the bike assembly service at the time of purchase! Discover all the details here: Francesconi bike assembly

A Complete Guide to Bike Sizes

Foreword: Not all bike sizes are the same

Each type of bike has a specific frame and often uses a different size scale. For example, a road bike with a 54cm frame might be considered a medium size by one brand, but a large by another.

Bicycle adjustment margins

Some types of bikes, like gravel bikes, offer a wide range of adjustments, adapting to different body types. Other models, however, have limitations in this regard. This is an important aspect to consider.

How to use size charts

We've created a simple guide to help you find the right bike size:

1. Check out our size charts for each bike type.
2. Learn more with specific tips to help you make the right choice.

Size Charts: Find Your Perfect Bike

Gravel and road bikes

Sizes are based on the length of the top tube (in cm), which determines the reach of the bike.

For gravel, measurements may vary slightly due to different geometries, but remain similar.

Mountain bike

MTBs are measured in inches, based on the seat tube.

Sizes also vary depending on the type of MTB: full-suspension , hardtail or fat bike .

Children's bikes

The size depends on the size of the wheels, often associated with age:

What to do with half measures?

If you are between two sizes:

• Comfort : Choose the larger size.
• Performance : Go for the smaller size.

Final tips for choosing

1. Consult the manufacturer's instructions : Always check the brand's guidelines.
2. Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
3. Test the bike : If possible, test the model you intend to purchase.