Gravel riding continues to evolve at a rapid pace. Riders are pushing further, racing harder, and demanding bikes that combine speed, efficiency and capability across mixed terrain. Now, for the first time, the Ventum GS1 gravel bike is available in the UK through Merlin Cycles.
Designed with a clear focus on performance, the GS1 is a purpose-built gravel race bike that blends lightweight carbon construction, aerodynamic shaping and generous tyre clearance. The result is a machine built to maintain high speeds across rough roads while delivering the responsiveness and efficiency riders expect from a race-oriented platform.
In this deep dive, we explore the technology and engineering behind the GS1 frame and why it’s quickly gaining attention among gravel riders worldwide.
A Gravel Race Bike Built for Speed
The GS1 is built around a simple philosophy: Ride Quick.
Rather than trying to cover every possible gravel riding scenario, the GS1 focuses on what matters most to performance riders:
- Efficient power transfer
- Aerodynamic efficiency
- High-speed stability
- Gravel capability without sacrificing responsiveness
The result is a gravel bike that feels fast and lively under power while remaining composed on rough surfaces. It delivers the kind of efficiency road riders appreciate, combined with the traction and control required for gravel terrain.
SamGross, Brand Manager for Ventum adds that they believe the best gravel race bike is ‘simple, tough and closely emulates the feel and responsiveness of a road bike. Stiff but reasonably forgiving, aerodynamic and stripped of any faff that could fail in a race‘.
Modern Tyre Clearance for Rougher Terrain
One of the defining characteristics of the GS1 is its impressive tyre clearance.
The frame is designed to accommodate:
- Up to 700 x 56c tyres in the front
- Up to 700 x 50c tyres in the rear when running a 1x drivetrain
Wider tyres have become increasingly important in modern gravel riding, providing:
- Improved traction on loose surfaces
- Greater comfort on rough terrain
- Increased confidence during fast descents
However, increasing tyre clearance can sometimes compromise handling if chainstays become too long. Ventum addresses this through deep drop chainstay shaping, allowing the GS1 to maintain a compact 420mm rear centre.
This clever design keeps the bike agile and responsive, ensuring it accelerates quickly and handles precisely when the pace increases.
Lightweight Carbon Construction
At the heart of the GS1 is a carefully engineered carbon frame designed to deliver the ideal balance of weight, stiffness and durability.
The frame utilises high-modulus carbon fibre, with tube shapes and material placement optimised for performance using five different Japanese-sourced carbon fibres. The result is a lightweight structure that remains stiff in key areas while allowing controlled compliance to absorb rough terrain.
This construction helps riders maintain momentum across gravel sectors while reducing fatigue during longer rides and races.
Balanced Stiffness for Power and Comfort
A fast gravel bike must transfer power efficiently while still smoothing out rough surfaces.
Ventum designed the GS1 frame to deliver stiffness where it matters most:
- A stiff bottom bracket area ensures efficient power transfer
- A reinforced head tube improves steering precision
- Rear triangle compliance helps reduce vibration from rough gravel roads
Together, these elements create a ride feel that is both responsive and controlled, allowing riders to maintain speed and confidence over challenging terrain.
Aerodynamic Frame Design
While gravel bikes traditionally prioritised comfort and durability, aerodynamics are becoming increasingly important as race speeds increase.
The GS1 incorporates aerodynamic shaping into key areas of the frame, including an hourglass-shaped head tube inspired by Ventum’s performance bike designs.
This sculpted profile helps guide airflow around the front of the bike and rider, reducing drag and improving efficiency at higher speeds.
Paired with the frame is a new gravel-specific fork designed to be;
- Slimmer
- Lighter
- Stiffer
The fork also provides clearance for large-volume tyres, allowing riders to take advantage of modern gravel tyre setups without compromising performance.
Race-Ready Gravel Geometry
Handling is critical in gravel racing, where riders often transition between smooth tarmac, rough tracks and loose gravel in a single ride.
The GS1 uses a race-focused geometry designed to provide:
- A fast, efficient riding position
- Stable steering at higher speeds
- Responsive acceleration
This geometry allows riders to push the pace confidently while maintaining control across varying terrain conditions.
Clean Integration and Modern Standards
Beyond performance, the GS1 also features clean integration and compatibility with modern components.
Frame highlights include:
- Full carbon frame and fork
- Internal cable routing
- Thru-axle construction
- Universal Derailleur Hanger (UDH) compatibility
- Zero-offset carbon seatpost
- T47 Bottom Bracket
These details ensure the GS1 works seamlessly with modern drivetrain systems while maintaining a sleek, race-focused aesthetic.
A New Gravel Option for UK Riders
With its combination of aero shaping, lightweight carbon construction and huge tyre clearance, the GS1 brings something fresh to the UK gravel scene.
Riders looking for a bike capable of maintaining speed across mixed terrain will appreciate the GS1’s balance of efficiency, responsiveness and stability.
Whether tackling fast gravel loops, endurance rides or competitive events, the GS1 is designed to help riders cover ground quickly and confidently.
Available Now at Merlin Cycles
The Ventum GS1 gravel bike is now available in the UK through Merlin Cycles, marking the first time this performance-focused gravel platform has been accessible to UK riders.
If you’re looking for a fast, lightweight carbon gravel bike designed with racing in mind, the GS1 is well worth a closer look.
Ride quick. Ride GS1.
See the full range of Ventum GS1 Gravel Bikes – Available Exclusively at Merlin Cycles
