For most aero gravel bikes, 38-40mm tires represent the sweet spot—wide enough for comfort and grip on moderate gravel, not so wide that they exceed the frame's aero-optimized clearance or add excessive rolling resistance. If your bike clears 42mm, run that for rougher events. For smooth gravel racing, 35-38mm may be faster. Always leave 4-6mm of clearance between the tire and frame to account for mud accumulation and tire growth at lower pressures.
Gravel Bike · Aero Gravel
What tire width should I run on an aero gravel bike?
Related gear types
If this answer nudged you toward a different style, these guides compare specs and trade-offs.
All-Road
$1500 – $10000
Road-oriented gravel bikes with modest tire clearance optimized for smooth gravel and paved surfaces.
Tire clearance 32–38mmRoad-adjacent geometryLower stack and longer reach
Gravel Race
$2500 – $12000
Lightweight, performance-oriented gravel bikes built for competitive gravel events and fast riding.
Aggressive race geometryLightweight framesetsStiff power transfer
More questions
- How much faster is an aero gravel bike compared to a regular gravel bike?
- Can I use an aero gravel bike for bikepacking?
- Are integrated cockpits worth the loss of adjustability?
- Is an aero gravel bike comfortable enough for long rides?