Why Some Riders Still Prefer Shallow Rims for Racing

In an era dominated by deep-section aero wheels promising free speed, it may seem surprising that many competitive riders — even at elite levels — still choose shallow rims for certain races. While aerodynamic gains are real, wheel depth is only one part of the performance equation. Here’s why shallow rims remain a popular choice in racing.

1. Superior Handling in Crosswinds
One of the biggest drawbacks of deep-section rims is their tendency to catch side gusts, especially in windy conditions or technical courses. Shallow rims, with their reduced surface area, are far more stable in unpredictable winds. This allows riders to maintain control and confidence, especially during high-speed descents or when riding in a peloton.

2. Faster Spin-Up Acceleration
Shallow rims usually weigh less at the outer circumference, lowering rotational inertia. This makes them easier to accelerate from low speeds — an advantage in criteriums, short climbs, and races with frequent changes in pace. In events where constant sprinting out of corners is required, this quicker response can be decisive.

3. Comfort Over Long Distances
While wheel stiffness is often praised for power transfer, overly stiff setups can transmit more road vibration to the rider. Shallow rims tend to flex slightly more vertically, which can reduce fatigue during long, rough races like classics or gravel events.

4. Better Braking Performance (in Rim-Brake Setups)
For rim-brake systems, shallow rims can offer better braking modulation in wet conditions. The smaller braking surface heats up and cools down faster, reducing the risk of overheating on long descents.

5. Climbing Efficiency
On steep gradients, every gram matters. Shallow rims generally have lower overall weight, which can make a noticeable difference in long climbs where aerodynamic benefits are minimal. This is why many climbers switch to low-profile wheels for mountain stages.

6. The Right Tool for the Job
Deep-section rims excel in flat, fast, and steady conditions. Shallow rims shine in courses with technical turns, strong winds, or lots of climbing. Smart racers choose their wheel depth based on race profile and conditions, not just aerodynamic charts.

Conclusion
Shallow rims are far from outdated — they offer tangible benefits in acceleration, control, comfort, and climbing. For riders who value agility and handling in challenging race environments, they remain a weapon of choice.