Bicycle Wheel Rim Widths And Tyre Sizes
If you're in the market for a new set of wheels for your bicycle, there are some important things you need to consider before making a purchase. One of the most crucial factors in choosing the right wheels is understanding the relationship between wheel rim widths and tyre sizes.
What Is Rim Width?
Rim width refers to the internal width of the rim where the tyre sits. This measurement is important because it affects the shape and size of the tyre that can be used with the rim. Generally speaking, wider rims can accommodate wider tyres, while narrower rims are better suited for narrower tyres.
Why Does Rim Width Matter?
The rim width you choose will have a major impact on the performance and handling of your bike. A rim that is too narrow for a particular tyre size can cause the tyre to bulge outwards, leading to poor handling and an increased risk of punctures. A rim that is too wide can cause the tyre to sit too flat, reducing grip and stability.
What Tyre Sizes Can Be Used With Different Rim Widths?
The table below outlines the recommended tyre sizes for different rim widths:
| Rim Width (mm) | Recommended Tyre Width (mm) |
|---|---|
| 13-15 | 18-25 |
| 17-19 | 28-38 |
| 21-23 | 35-50 |
Can You Use Wider Or Narrower Tyres Than Recommended?
While it is possible to use wider or narrower tyres than the recommended sizes, it is generally not recommended. Using a tyre that is too narrow for the rim can lead to reduced grip and stability, while using a tyre that is too wide can cause the tyre to bulge outwards and increase the risk of punctures.
What Other Factors Should You Consider When Choosing Wheels?
While rim width and tyre size are important factors to consider when choosing wheels, there are other factors that can affect the performance and handling of your bike. These include:
- Wheel material
- Wheel weight
- Hub type
- Spoke count and pattern
Conclusion
Choosing the right wheels for your bicycle can be a daunting task, but understanding the relationship between rim width and tyre size is a crucial first step. By selecting wheels with the appropriate rim width for your desired tyre size, you can ensure optimal performance and handling on the road or trail.