The landscape of competitive cycling has evolved dramatically over the past decade, witnessing an exciting surge in popularity of mixed-surface events. Races combining paved roads, gravel paths, and even dirt trails have emerged, redefining the traditional boundaries between road cycling and mountain biking. Events like Unbound Gravel, Belgian Waffle Ride, and Grinduro exemplify this shift, demanding specialized equipment tailored explicitly for diverse terrain conditions.
At FLO Cycling, we’ve embraced this evolution wholeheartedly. Recognizing the unique demands placed on wheels during mixed-surface events, our engineering team developed the FLO G700 gravel wheelset—optimized specifically for the diverse conditions encountered by today’s adventurous cyclists.

Understanding Mixed-Surface Demands
Mixed-surface races challenge cyclists with continually changing terrains—from smooth tarmac to rugged, unpredictable gravel trails. Each terrain type exerts distinct demands on wheel construction, tire selection, and rider comfort, making traditional road or mountain bike wheels less than ideal.
Several factors become crucial when engineering wheels for mixed-surface events:
- Durability and Reliability: Wheels must withstand repeated impacts, vibrations, and unpredictable obstacles.
- Comfort and Vibration Management: Continuous changes in terrain require wheels capable of absorbing vibrations and shocks efficiently to maintain rider comfort and reduce fatigue.
- Versatile Tire Compatibility: Effective wheel designs must accommodate a range of tire sizes and profiles to suit varying terrain types throughout an event.
How Terrain Percentages Influence Wheel and Tire Choices
Mixed-surface events differ significantly in their ratios of paved to off-road terrain. Some events may feature extensive pavement segments, while others emphasize rougher gravel and dirt trails. Understanding these terrain percentages is critical in determining optimal tire selection and, consequently, the best wheel design:
- High Pavement Percentage (>70% paved): Events dominated by smooth surfaces prioritize rolling efficiency and aerodynamic advantage. Riders typically opt for narrower, smoother gravel tires (e.g., 32-38mm) that roll efficiently on tarmac yet handle light gravel comfortably.
- Balanced Terrain (40%-70% paved): Events featuring a balanced mix of pavement and gravel demand versatile tire choices (e.g., 38-42mm). Such tires provide sufficient rolling speed on asphalt while offering grip and comfort on moderate gravel surfaces.
- High Gravel Percentage (>70% off-road): Races predominantly on gravel and dirt surfaces necessitate wider, more aggressive tread patterns (42-50mm). These tires provide enhanced traction, stability, and puncture resistance on demanding terrains.
The ability of wheels to accommodate and optimize these varying tire selections is crucial for competitive success and rider safety in mixed-surface events.
FLO G700: Engineered for Versatility and Performance
The FLO G700 was engineered specifically for gravel and mixed-terrain events, this wheelset addresses each crucial factor:
Vibration Management Through Carbon Layup
Gravel riding introduces substantial vibration and shock impacts, significantly affecting rider comfort and fatigue levels. Our FLO G700 wheels leverage carbon fiber layup techniques explicitly designed to enhance vibration absorption without sacrificing structural integrity or stiffness.
By carefully positioning and orienting layers of carbon fiber, we’ve developed a wheel that effectively dampens vibrations commonly encountered on gravel terrain. This reduces fatigue, enhances comfort, stabilizes steering, and ultimately allows riders to maintain higher performance levels for longer durations.
Optimized Rim Width for Versatile Tire Compatibility
Our FLO G700 wheels feature an optimal rim width that accommodates a broad range of tire sizes—from narrower, fast-rolling tires suited for pavement-heavy courses to wider, aggressive tread tires essential for predominantly off-road events.
This versatility ensures riders can easily customize their wheel-and-tire setup according to the demands of each race, improving both efficiency and traction, regardless of the event’s terrain composition.

Real-World Performance Benefits
When competing in mixed-surface events, selecting a wheel specifically engineered for varied conditions—like the FLO G700—offers distinct real-world advantages:
- Reduced Rider Fatigue: Effective vibration management significantly reduces fatigue over long distances, allowing riders to maintain optimal power output and performance longer into events.
- Improved Handling and Confidence: Wheels optimized for gravel terrain provide predictable and stable handling, essential during technical descents and fast, rough sections.
- Versatility Across Terrain Types: The G700’s compatibility with a wide range of tire profiles allows quick adaptation to event-specific terrain compositions, offering the right balance of speed and control, regardless of surface changes.
- Enhanced Durability: Reliable construction ensures minimal risk of mechanical issues, enabling riders to focus solely on performance rather than equipment concerns.
Selecting Your Optimal Wheel and Tire Combination
To maximize your competitive advantage in mixed-surface races, carefully evaluate the expected terrain breakdown of your chosen event:
- For pavement-heavy events, pairing the FLO G700 with a 32mm road or semi-slick gravel tires enhances rolling efficiency and aerodynamics.
- Balanced terrain events benefit from mid-width, moderately treaded tires, ensuring adequate traction without sacrificing significant rolling speed.
- Events dominated by extreme gravel require the widest and most aggressive tires compatible with your wheels, optimizing grip, stability, and puncture resistance.
Conclusion: Embracing the Mixed-Surface Evolution
The rise of mixed-surface events represents an exciting evolution in competitive cycling. At FLO Cycling, the development of our FLO G700 gravel wheelset focused specifically on these types of races.
By prioritizing sophisticated carbon layup techniques for vibration management, versatile rim widths for optimal tire compatibility, and robust construction for unmatched reliability, you can confidently tackle any mixed-surface challenge.
As you prepare for your next mixed-terrain adventure, ensure your wheels are specifically engineered for the diverse demands you’ll face—because the right wheel choice is your key to unlocking maximum performance, comfort, and enjoyment in every event.

Co-founder at FLO Cycling. Jon manages the day to day operations and acts as the lead engineer for all FLO products.
