A common characteristic with the road bikes is the presence of thin tires.
Generally, less rubber on the road translates to greater rolling resistance, less noise, and less wasted energy.
So why are low-profile tires popular in road bikes?
#1. Speed Purpose
The importance of speed in road bikes cannot be overlooked as road bikes are more often than not used in competitive sports, and having a fast bike will give you a competitive edge over your rivals.
A simple tread design, in combination with a shorter stiffer sidewall on the thin tires, results to lower-rolling resistance.
The low profile of the tin tires “cuts” through the wind resistance, reduces friction and allows you to achieve more speed.
Besides reducing on friction, the lower rolling resistance translates to low energy requirements and thus, greater speed output for the same amount of energy in broad tires.
Weight and speed go hand in hand. Lightweight bikes are often associated with speed.
The importance of having a lightweight bike is such a crucial factor that manufacturers have gone a step further to manufacture carbon frame bikes, that are lighter than the traditional aluminum bike.
But beside the frame, the tires also play a crucial role in the weight of a bike.
Generally, thin tires will consume less material, meaning there are lighter than the broad tires, and hence, the preferred choice in road bikes.
#3. Greater Braking Performance
In most cases, thin tires are often accompanied by large rims, which also opens a possibility of installing larger braking elements.
This helps to reduce the braking distance dramatically, which is crucial at high speeds.
Generally, wider tires are famous for having greater traction, thanks to a broader contact area.
However, traction is multi-faceted and is primarily achieved in two ways.
One is through a wider contact area like we see in broad tires and the other one is through greater pressure per square inch, which the thin tires easily achieve.
The essence of having low friction and greater pressure of the road is manifested when cycling on the snow. Narrow tires will perform better on roads covered with snow as they will dig deeper into the snow, thus providing more traction.
Again, with the thin tires, you get the advantage of larger tread blocks that will improve traction on dry, smooth surfaces, consequentially improving on the steering performance.
#5. Improved “Run-Flat” Technologies
The run-flat technology is a relatively new performance feature that is only available in the high-end road bike tires.
What this technology does is that it will allow a cycler to ride safely even when the tires are deflated.
With the thin tires, there’s less air initially, and hence, a lot easier to implement and improve this technology.
However, your thin tire to keep rolling safely devoid of air, the sidewalls and the shoulders will require reinforcement. This will allow you to run with the deflated tires for at least 50 miles.
However, not all thin tires have the run-flat technology, but it’s a prominent feature in the low-profile road bike tires.
Here are some of the benefits of the run-flat thin tires;
- Greater stability in the event of a blowout
- Allow you to drive safely on a flat tire to your nearest shop
At first, installing large rims alongside wide tires was an enthusiastic tuner’s passion, with the trend prospering for a couple of decades.
However, nowadays, a majority of the cyclists are now aiming for lower aspect ratios. Thin and low-profile tires are now the new sporty.
Choosing the right type of tires will play a significant role in your performance.
While the thin tires are an ideal option for the road bikes, it’s also crucial you remember the terrain you use has a significant impact on the type of roads those tires will come up against.