As cyclists look to maximize their performance and shave a few seconds off their time trial or criterium, they will invariably find themselves considering aero rim frames. Aero rim frames, also known as “deep rim frames”, feature taller and wider rims that are designed to cut through the wind with greater efficiency. What makes these type of frames stand out against traditional rim frames? This article will explore some of the key features of aero rim frames.
The first feature of aero rim frames that makes them stand out is their aerodynamic design. Aero rim frames feature taller and wider rims that are designed to create a “smoother” profile when cutting through the air, which in turn reduces air pressure drag. Additionally, the frames themselves are usually quite stiff, reducing frame flexion, which can also lead to a greater aerodynamic performance. With less drag, the cyclist can gain a greater “forward push”, leading to improved performance over time.
The second feature of aero rim frames that make them stand out is their light weight. As frames become taller and wider, they generally become heavier. However, due to advancements in engineering, aero frames can be significantly lighter than traditional frames. This lighter weight allows cyclists to accelerate faster, climb hills more easily and maintain a lower average speed over a longer period of time. Additionally, the lighter frame also decreases the overall fatigue on the rider, allowing them to perform at a higher level for an extended period of time.
The third feature of an aero rim frame that makes them stand out is their strength. Aero rim frames are designed to be more robust than traditional frames, with increased wall thickness providing greater strength. This increased strength is especially important in the windy conditions that cyclists will often face. With aero rim frames, cyclists can be sure that their frames are strong enough to handle the conditions they encounter, while at the same time providing the aerodynamic performance they desire.
Finally, aero rim frames are also designed with an eye towards comfort. Different materials are used to reduce road vibrations and provide a more plush ride. By reducing road vibrations, the cyclist can remain in the saddle for a longer period of time, leading to improved performance and faster speeds. Comfort is also enhanced through the use of wider tires, improved geometries, and even strategically placed bumpers that reduce fatigue.
Overall, aero rim frames stand out amongst other types of frames thanks to their aerodynamic design, light weight, strength, and improved comfort. By taking advantage of these features, cyclists are able to reduce their air pressure drag, climb hills more easily, remain in the saddle longer and feel less fatigue. While there may be newer frames on the market than aero rim frames, they remain an excellent choice for performance-minded cyclists who are looking to boost their times or simply enjoy a more comfortable ride.