35mm vs 50mm Wheels: Which Wheel Depth Is Right for Your Riding Style?
When shopping for a new carbon wheelset, one of the most common questions cyclists ask is: Should I choose 35mm wheels or 50mm wheels?
Both rim depths have become extremely popular among road cyclists, offering different advantages in climbing, aerodynamics, handling, and overall ride feel. While professional racers often use multiple wheelsets depending on the terrain, most amateur riders need a single wheelset that can handle a variety of conditions.
In this guide, we'll compare **35mm vs 50mm wheels** and help you determine which option best suits your riding goals.
## Understanding Rim Depth
Rim depth refers to the vertical height of the wheel rim.
35mm wheels are considered mid-shallow wheels.
50mm wheels are considered mid-deep aero wheels.
Generally speaking:
* Deeper rims improve aerodynamic performance.
* Shallower rims reduce weight and improve handling in crosswinds.
The challenge is finding the right balance for your riding conditions.
## Aerodynamics: 50mm Wheels Take the Lead
Aerodynamics becomes increasingly important as speed rises.
At speeds above 30 km/h (18.6 mph), aerodynamic drag accounts for the majority of resistance a cyclist must overcome. A deeper wheel profile helps smooth airflow around the wheel, reducing drag and improving efficiency.
### Advantages of 50mm Wheels
* Better aerodynamic efficiency
* Higher cruising speeds
* Improved performance in solo rides and races
* Easier to maintain momentum on flat roads
Many wind tunnel tests have shown that moving from a shallow wheel to a 50mm aero wheel can save several watts at race speeds.
For riders who frequently participate in:
* Road races
* Time trials
* Fast group rides
* Triathlons
50mm wheels usually offer a noticeable advantage.
### 35mm Wheels
A 35mm wheel still provides some aerodynamic benefits compared with traditional alloy wheels, but it cannot match the drag reduction offered by a modern 50mm rim.
**Winner: 50mm Wheels
## Weight and Climbing Performance: 35mm Wheels Have the Edge
Weight matters most when riding uphill.
Although modern carbon technology has reduced the weight difference between wheel depths, 35mm wheels are still generally lighter than their 50mm counterparts.
A typical comparison might look like this:
Wheel Depth Average Weight
35mm 1250–1450g
50mm 1350–1550g
The lighter weight of a 35mm wheelset can provide:
* Faster acceleration
* Easier climbing
* Improved responsiveness
* Less fatigue on long mountain rides
For riders who regularly tackle steep climbs or mountainous terrain, every gram counts.
### Why Pros Still Use Shallow Wheels in the Mountains
During major mountain stages in professional races, riders often switch to shallower wheelsets because lower rotating mass improves responsiveness when repeatedly accelerating uphill.
Winner: 35mm Wheels
## Crosswind Stability
Crosswinds can significantly affect wheel handling.
Because deeper rims present a larger surface area to side winds, 50mm wheels are generally more susceptible to gusts than 35mm wheels.
### 35mm Wheel Advantages
* More stable in windy conditions
* Easier handling for lighter riders
* Greater confidence during descents
* Better control of exposed roads
### 50mm Wheel Improvements
Modern rim designs have greatly improved crosswind performance. Wide U-shaped and toroidal rim profiles help reduce sudden steering inputs caused by side winds.
However, in strong gusty conditions, 35mm wheels remain easier to control.
**Winner: 35mm Wheels
## Speed on Flat Roads
For riders spending most of their time on flat terrain, speed is often the top priority.
This is where 50mm wheels excel.
Once speed reaches 35-40 km/h, the aerodynamic benefits become increasingly significant. Riders often report that deep wheels feel like they "hold speed" better after accelerating.
Benefits include:
* Better efficiency at race pace
* Reduced energy expenditure
* Higher average speed
* Faster sprinting
If your local roads are mostly flat or rolling, 50mm wheels will likely deliver the best performance.
**Winner: 50mm Wheels
## Versatility for Everyday Riding
Many cyclists want a single wheelset that can do everything.
This is where the choice becomes less obvious.
### Choose 35mm Wheels If:
* You ride in mountainous areas
* You prioritize lightweight performance
* You often encounter strong winds
* You prefer responsive handling
* You are a lighter rider
### Choose 50mm Wheels If:
* You ride mostly flat or rolling terrain
* You participate in races
* You want maximum aerodynamic gains
* You frequently ride above 30 km/h
* You enjoy fast group rides
## Why Many Riders Choose 50mm Today
Advances in carbon manufacturing have narrowed the weight gap between shallow and deep wheels.
Modern wheelsets such as the Superteam S-ALL Carbon Ultra combine:
* Competitive weight
* Excellent aerodynamic efficiency
* Wide modern rim profiles
* Improved crosswind stability
As a result, many cyclists now view 50mm as the ideal "one-wheelset solution" for mixed terrain riding.
For riders who want the greatest overall performance upgrade, a quality 50mm carbon wheelset often provides the most noticeable improvement.
## Final Verdict: 35mm vs 50mm Wheels
There is no universal winner.
The best wheel depth depends on where and how you ride.
**Choose 35mm wheels if:
* Climbing is your priority
* You frequently ride in strong winds
* You value lightweight responsiveness
**Choose 50mm wheels if:
* Speed is your priority
* You race regularly
* You ride mostly flat or rolling terrain
* You want the best all-around aero performance
For most modern road cyclists looking for a single wheelset capable of handling nearly everything, 50mm carbon wheels offer the best balance between weight, aerodynamics, and versatility, while 35mm wheels remain the preferred choice for dedicated climbers and mountain specialists.