Optimal Tyre and Frame Clearance: Expert Advice

Optimal Tyre and Frame Clearance: Expert Advice

Table of Contents:

1. Introduction
2. Changing Cassette Sizes
3. Swapping Wheelsets and Brake Discs
4. Maintaining Waxed Chains in Winter
5. Storing Wax Chains
6. Attaching Rear Racks to Carbon Bikes
7. Cleaning and Lubricating Derailleurs
8. Waxing Cassettes
9. Tire Clearance on Bikes
10. Conclusion

Introduction

Welcome to the GCN Tech Clinic, where we aim to answer all your bike and tech-related questions. You can submit your questions in the comments section below using the hashtag #askGCNTech, and we'll do our best to answer as many as possible within the allocated time. In this article, we will address various topics ranging from changing cassette sizes to attaching rear racks on carbon bikes.

Changing Cassette Sizes

One common question that arises when changing cassette sizes is whether or not to use a spacer from the new cassette on the free hub. The answer depends on the specific situation. If You are using a 12-speed cassette and an 11-speed freehub body, it is necessary to use a thin spacer provided by Shimano. However, if you are using an 11-speed cassette with an 11-speed freehub, you may not need the spacer. It is recommended to do some trial and error to determine whether the spacer is required, as the larger cassette sizes sometimes have a space in the back to bring the cassette out. It is important to ensure a proper fit to avoid any play or movement in the cassette.

Swapping Wheelsets and Brake Discs

Have you experienced the inconvenience of having to re-enter brake discs in the calipers every time you swap wheelsets? This is a common problem, but there is a solution. If you are using six-bolt rotors, you can slightly space them out to simplify the swapping process. However, if you have Center Lock hubs, you can use a converter to run six-bolt rotors and space them out. It is recommended to add protective tape or 3M film to prevent any rubbing or damage to your carbon frame caused by dirt and Water.

Maintaining Waxed Chains in Winter

If you ride with waxed chains in winter, it is crucial to know how to maintain them. After a ride with wet roads, wiping the chain off with a clean microfiber towel is recommended. If there is salt on the roads, rinsing the chain with clean water and then wiping it down will help prevent rust. It is highly beneficial to have plenty of microfiber towels for this purpose. By ensuring proper maintenance, you can maximize the lifespan and performance of your waxed chain.

Storing Wax Chains

A common question is how long a wax chain can be stored without losing its favorable properties. The good news is that wax chains can be stored for an extended period without degradation. Simply store them as you would a normal chain. It is also possible to wax multiple chains in one go for easy switching between them. Additionally, it is advisable to run the chains in before storage to ensure optimal performance. Storing the chains in labeled freezer bags or ziplock bags is a recommended organizational method.

Attaching Rear Racks to Carbon Bikes

Many cyclists wonder if there is a way to attach rear racks to carbon bikes that do not have mount points. While it is possible, caution is advised, and it is essential to choose the right products. Brands like Tailfin and Topeak offer rack options that attach through the through axles or clamp onto the seat post. However, it is crucial to consider weight limitations and use protective tape or 3M film to prevent any damage to the carbon frame.

Cleaning and Lubricating Derailleurs

To clean and lubricate exposed links on a derailleur, the easiest method is to brush the debris off while cleaning the bike. If you are concerned about the links and pivot points, applying a drop of chain lube will help keep them in optimal condition. However, it is worth noting that this step may not always be necessary.

Waxing Cassettes

Contrary to popular belief, waxing cassettes is not recommended. It is unnecessary and can lead to over-lubrication, attracting dirt and causing potential issues. Waxing only the chain is sufficient to optimize performance and longevity. The wax coating on the chain helps smooth out the surfaces, improving efficiency and reducing friction.

Tire Clearance on Bikes

When a bike specifies clearance for a certain tire size, it is important to leave a sufficient gap between the tire and the frame. The exact measurement may vary, but the primary concern is to ensure that no debris, such as stones or dirt, gets dragged around by the tire, potentially scratching or damaging the frame. A couple of millimeters of clearance is recommended, considering the potential flex of the wheel or frame during riding.

Conclusion

In conclusion, the GCN Tech Clinic offers valuable insights and solutions to various bike and tech-related queries. Whether you are considering changing cassette sizes, swapping wheelsets, waxing chains, attaching rear racks, cleaning derailleurs, or understanding tire clearance, it is essential to follow the recommended practices and take necessary precautions. By maintaining and optimizing your bike's components, you can ensure a smooth and enjoyable cycling experience. If you have further questions or need additional assistance, feel free to leave a comment below or reach out to the GCN Tech Clinic. Ride safe and keep exploring!

Highlights:

• Learn how to change cassette sizes and deal with spacers on the freehub.
• Discover solutions for swapping wheelsets and brake discs without the hassle.
• Understand the maintenance steps for waxed chains in winter and how to prevent rust.
• Find out the best practices for storing wax chains and maintaining their favorable properties.
• Explore options for attaching rear racks securely to carbon bikes.
• Get insights on cleaning and lubricating derailleurs for optimal performance.
• Understand the importance of avoiding waxing cassettes for efficiency.
• Learn about tire clearance and the potential implications on frame protection.
• Gather practical tips and advice to enhance your cycling experience.

FAQ:

Q: Can I use a spacer from a new cassette on the freehub?
A: The need for a spacer depends on various factors, such as the cassette and freehub compatibility. It is recommended to do some trial and error to determine the best solution.

Q: How can I maintain waxed chains in winter?
A: Wiping the chain off with a clean microfiber towel and rinsing it with clean water is effective in removing debris and preventing rust. Reapplying wax after drying is essential.

Q: Is it necessary to wax a cassette?
A: No, waxing cassettes is not necessary. Waxing the chain is sufficient to improve performance and reduce friction. Over-lubrication can attract dirt and cause issues.

Q: What options do I have for attaching rear racks to a carbon bike without mount points?
A: Brands like Tailfin and Topeak offer rack options that attach through the through axles or clamp onto the seat post. It is crucial to choose the right products and use protective measures.

Q: How much clearance should I have between the tire and the frame?
A: While there is no set measurement, it is recommended to have at least a couple of millimeters of clearance to prevent debris from scratching or damaging the frame. Consider potential flex during riding.