Bontrager Hub Bearing

This bearing is designed specifically for Bontrager system wheels that utilize the 3802 bearing size. Before purchasing, check your current hub's service manual or the markings on the existing bearing seal to confirm the 3802 specification matches your hub model.

The sealed cartridge design prevents dirt, grit, and moisture from entering the bearing race, which significantly extends the lifespan of the component. It offers a more reliable, low-maintenance solution compared to traditional cup-and-cone systems.

Compatibility depends entirely on your specific wheel model. While this bearing is a standard size for many Bontrager hubs, some wheelsets use different bearing sizes for the front versus the rear hub. Always verify the part number or bearing size against your specific wheel's technical documentation.

Yes, proper installation requires a bearing press tool to ensure the bearing is seated evenly and squarely into the hub shell. Using a hammer or improvised tools can damage the bearing housing or the hub itself, leading to premature failure.

Yes, these sealed cartridge bearings arrive pre-lubricated with high-quality grease from the factory. You do not need to add extra grease before installation, as the sealed design is intended to keep the internal lubrication clean and effective.