Rear Hub – Definition & Detailed Explanation – Bicycle Components Glossary

I. What is a rear hub?

A rear hub is a component of a bicycle that is located at the center of the rear wheel. It is responsible for connecting the wheel to the frame of the bike and allowing the wheel to rotate smoothly. The rear hub contains bearings that allow the wheel to spin freely and is typically attached to the frame of the bike using a quick-release skewer or thru-axle.

II. How does a rear hub work?

The rear hub works by connecting the wheel to the frame of the bike and allowing the wheel to rotate freely. When the rider pedals, the chain transfers power from the pedals to the rear hub, which then transfers that power to the rear wheel, propelling the bike forward. The bearings inside the rear hub allow the wheel to spin smoothly and efficiently.

III. What are the different types of rear hubs?

There are several different types of rear hubs available, including:

1. Freewheel hub: This type of rear hub has a freewheel mechanism that allows the wheel to spin freely when coasting, without the pedals turning.
2. Cassette hub: This type of rear hub uses a cassette system to attach the gears to the hub, allowing for easy gear changes.
3. Fixed gear hub: This type of rear hub does not have a freewheel mechanism, meaning the pedals are always turning when the bike is in motion.
4. Internally geared hub: This type of rear hub has the gears contained within the hub itself, providing a clean and low-maintenance option for gear changes.

IV. What are the key components of a rear hub?

The key components of a rear hub include:

1. Hub shell: The outer casing of the hub that houses the bearings and axle.
2. Bearings: The small, round components that allow the hub to spin smoothly.
3. Axle: The rod that runs through the center of the hub and attaches the wheel to the frame.
4. Freewheel or cassette: The mechanism that holds the gears in place and allows for gear changes.
5. Quick-release skewer or thru-axle: The component that attaches the hub to the frame of the bike.

V. How to maintain and troubleshoot a rear hub?

To maintain a rear hub, it is important to regularly clean and lubricate the bearings to ensure smooth operation. If the hub is making unusual noises or feels rough when spinning, it may be a sign that the bearings need to be replaced. To troubleshoot a rear hub issue, it is recommended to first check the tightness of the quick-release skewer or thru-axle, as loose attachment can cause problems with the hub. If the issue persists, it may be necessary to disassemble the hub and inspect the bearings for wear or damage.

VI. What are some popular rear hub brands in the market?

Some popular rear hub brands in the market include:

1. Shimano: Known for their high-quality components, Shimano offers a wide range of rear hubs for different types of bikes.
2. DT Swiss: A Swiss brand known for their precision engineering, DT Swiss rear hubs are popular among cyclists for their durability and performance.
3. Chris King: A premium brand that is known for their high-end rear hubs, Chris King hubs are sought after for their quality and craftsmanship.
4. Hope Technology: A UK-based brand that offers a variety of rear hubs for mountain biking and road cycling, Hope Technology hubs are known for their reliability and performance.