The Shimano FH-6800 [paid link] hub is part of Shimano’s Ultegra 6800 series and provides excellent performance for road cyclists seeking reliable, smooth, and durable hubs. While the FH-6800 [paid link] is a great hub as is, many riders wonder if it can be upgraded for improved performance or to meet new needs. Upgrading your FH-6800 [paid link] hub can offer better engagement, increased durability, or improved compatibility with modern components. This guide will explore the possibilities for upgrading the Shimano FH-6800 hub, what parts are compatible, and the best practices to follow for optimal results.
Understanding the Shimano FH-6800 Hub
Before diving into the upgrade options, it’s important to understand the key features of the Shimano FH-6800 hub. The FH-6800 is known for its high-quality construction, featuring sealed bearings and a 10-speed or 11-speed freehub body, depending on the version. It is part of Shimano’s Ultegra series, known for its performance-oriented design aimed at serious road cyclists. The hub is compatible with Shimano’s 10-speed and 11-speed drivetrains, providing smooth and efficient power transfer.
Is the Shimano FH-6800 Hub Upgradeable?
Yes, the Shimano FH-6800 hub can be upgraded in various ways. However, it’s important to note that the upgrade options are somewhat limited when compared to more modern hubs due to the design and age of the FH-6800. While it may not be possible to perform a radical upgrade to the hub’s core mechanics, there are several enhancements that can improve its performance, compatibility, and longevity.
Key Areas for Potential Upgrades
- Freehub Body
The FH-6800 hub uses a 10-speed or 11-speed freehub body, and many riders wonder if it’s possible to switch to a newer, wider freehub body that accommodates 12-speed or 13-speed cassettes. Unfortunately, Shimano FH-6800’s freehub body is not directly compatible with newer 12-speed or 13-speed cassettes. However, the 11-speed freehub body can still be used with modern Shimano 11-speed cassettes, providing a higher range of gears and improved performance. - Bearings
While the stock sealed bearings in the FH-6800 are of good quality, there is room for improvement. Upgrading to high-performance ceramic bearings can reduce friction, increase durability, and provide a smoother ride. Ceramic bearings are known for their low rolling resistance, which results in improved energy transfer and faster wheel spin. This can provide noticeable gains in performance, especially during long rides or races. - Hub Shell and Spokes
Although the FH-6800 hub shell is durable and designed for performance, riders seeking the ultimate in weight reduction and stiffness may consider upgrading the entire wheelset. The hub shell itself can’t be easily swapped with a different model, but pairing the FH-6800 hub with lighter spokes and rims may reduce overall wheel weight, enhancing ride performance. - Axles and Freehub Engagement
The FH-6800’s engagement mechanism is generally responsive, but riders who prefer faster engagement may look for options to upgrade the freehub’s pawl mechanism. Upgrading to a hub that features a faster engagement system—such as a hub with 72-point engagement—can drastically improve responsiveness during acceleration and riding in fast-paced conditions. However, these types of hubs are typically not directly interchangeable with the FH-6800, so you may need to switch the entire hub for a better engagement option.
What Components Are Compatible with the FH-6800 Hub?
When upgrading the Shimano FH-6800 hub, it is crucial to choose components that are compatible with the hub’s design. Here are the components that work well with the FH-6800:
- Cassettes: Shimano 10-speed and 11-speed cassettes are compatible with the FH-6800. For an upgrade, riders should select high-quality 11-speed cassettes to enhance performance.
- Skewers and Axles: The FH-6800 hub uses a 9mm quick release axle or can be adapted to fit 12mm thru-axles. Ensure that the axle type you choose aligns with your bike frame.
- Bearings: Shimano’s FH-6800 hub bearings are sealed, but higher-grade bearings such as ceramic or upgraded sealed bearings can be installed for better performance. It’s essential to confirm the specific size and type of bearings before replacing them.
Best Practices for Upgrading Your Shimano FH-6800 Hub
When upgrading the FH-6800 hub, it is important to keep these best practices in mind to ensure a smooth installation and improved performance.
- Check Compatibility Before Purchasing Components
Not all components are compatible with the FH-6800, especially when upgrading to modern 12-speed systems. Double-check the specifications of any parts you plan to use, especially the freehub body and cassettes, to make sure they work with your existing setup. - Consult a Professional Mechanic for Bearing Upgrades
While upgrading to ceramic or premium sealed bearings may seem simple, it is advisable to consult a professional mechanic. Proper installation of bearings requires precision, and improper installation can lead to increased friction or premature wear. - Regularly Service the Hub
Upgrading the bearings or the freehub body won’t make much difference if the hub isn’t maintained correctly. Regularly clean and lubricate the hub to prevent dirt and moisture buildup. Additionally, check for any signs of wear or damage, particularly to the freehub body and bearings, to prevent issues down the road. - Consider Upgrading the Entire Wheelset
If you’re looking for maximum performance gains, you may want to consider upgrading to a modern hub with a faster engagement system or better bearing technology. While the FH-6800 is a great hub, newer hubs, like the Shimano Dura-Ace or the newer Ultegra hubs, offer significant advancements in engagement and weight savings. - Choose Components for the Specific Riding Conditions
Depending on your riding style and the conditions you encounter, choose components that will enhance your specific needs. For example, if you frequently ride in wet or muddy conditions, investing in a hub with superior sealing or a more robust freehub system can provide more longevity and performance in those conditions.
Conclusion
Upgrading your Shimano FH-6800 hub can significantly enhance your riding experience, but it’s essential to know what parts are compatible and how to install them properly. While the FH-6800 is an excellent hub in its stock configuration, swapping to high-performance bearings, adjusting the freehub body, and even pairing it with a lighter, more responsive wheelset can deliver improved performance. As with any upgrade, carefully choose components based on your specific needs and ensure compatibility to avoid issues. By following these best practices, your FH-6800 hub can provide years of reliable and efficient service, helping you reach peak performance on the road.