When upgrading to a new set of carbon wheels, one of the most important decisions you’ll make is rim depth. The right depth can transform your speed on flats, improve stability in crosswinds, and make climbing feel noticeably easier. At MovingSports, we offer three proven rim depths to cover every riding style: 40mm, 50mm, and 65mm. In this guide, we break down how each depth performs, so you can choose the perfect balance of aerodynamics, comfort, and control.
Shallow & Versatile: 40mm Carbon Rims
Our 40mm rim is the most versatile option in our lineup, designed for riders who value stability, light weight, and all-day comfort.
At this depth, the wheel behaves predictably even in strong crosswinds, making it ideal for hilly terrain, windy routes, and long-distance rides. The shallower profile also keeps overall weight low, improving acceleration and making climbs feel less demanding.
Best for:
- Climbing-focused riding
- Hilly or windy routes
- Beginners who want stable handling
- All-day comfort and endurance rides
If you race crits, ride rolling terrain, or simply want a wheel that performs well everywhere without compromise, the 40mm is your safest and most capable choice.
All-Round Performance: 50mm Carbon Rims
The 50mm rim is our most popular all-rounder, balancing real-world aerodynamics with manageable crosswind stability.
Deeper than 40mm, it cuts through wind more efficiently on flat roads and maintains speed better during long efforts. Yet it remains light enough for most climbs and stable enough for typical road conditions. For many amateur and competitive riders, 50mm hits the sweet spot between speed and usability.
Best for:
- Flat to rolling terrain
- Road races
- Riders who want speed without extreme sensitivity to wind
- Balanced performance for training and racing
If you want to go faster on flats and still climb comfortably, the 50mm is the top all-around choice.
Maximum Aero: 65mm Deep Carbon Rims
Our 65mm rim is built for pure speed, optimized for strong aerodynamic performance on flat and fast courses.
This deep profile significantly reduces drag, helping you hold higher speeds with less effort. It excels in time trials, triathlons, flat road races, and closed courses where aerodynamics matter most. Due to its depth, it performs best in calmer wind conditions and is ideal for riders prioritizing maximum straight-line speed.
Best for:
- Flat, fast courses
- Time trials and triathlons
- Aero-focused racing
- Calm wind conditions
If raw speed on flat ground is your main goal, the 65mm will deliver the highest aerodynamic benefit.
How to Choose Between 40mm, 50mm, and 65mm
Use this simple rule to decide:
- 40mm: Climbs, hills, wind, stability, versatility
- 50mm: Balanced aero + climb, all-purpose racing & training
- 65mm: Flats, speed, triathlon, TT, minimal wind
At MovingSports, all three rim depths are built with quality carbon fiber layup, consistent stiffness, and reliable braking performance, so you can choose based on your terrain—not on compromise.
Explore our full range of 40mm, 50mm, and 65mm carbon wheels to find your ideal setup.
For personalized advice or wholesale inquiries, contact our team today for expert recommendations and pricing.