The Campagnolo Bora One[paid link] hub is a high-performance component designed for precision, smooth rolling efficiency, and longevity under demanding road cycling conditions. As part of Campagnolo’s premium wheelset lineup, the Bora One hub combines lightweight design with excellent stiffness and durability. This guide provides detailed instructions for installation, adjustment, and maintenance to ensure peak performance and extended lifespan of your Bora One hub.
Tools Required
- 5mm and 10mm Allen keys[paid link]
- Torque wrench[paid link] (Nm scale)
- Cone wrenches (13mm and 15mm)
- Grease and high-quality hub oil
- Clean lint-free cloth
- Campagnolo hub bearing puller and press (for bearing service)
- Cassette lockring tool[paid link]
- Quick-release skewer (for testing bearing preload)
Understanding the Campagnolo Bora One Hub
The Bora One hub is engineered with Campagnolo’s precision-machined aluminum shell and features USB (Ultra Smooth Bearings) ceramic bearings. These bearings reduce friction while maintaining excellent resistance to wear. The rear hub integrates a 3-pawl freehub mechanism for reliable engagement, and the internal design ensures consistent performance even under load.
Campagnolo’s signature cup-and-cone bearing system is used, allowing precise preload adjustment and easy servicing—making it a preferred choice among mechanics for its tunability and longevity.
Installation of the Campagnolo Bora One Hub
Proper installation of the Bora One hub is essential to guarantee smooth rolling performance and correct alignment with the drivetrain.
Preparing the Wheel and Frame
Before installation, inspect the dropouts on the frame and fork to ensure they are clean, flat, and free from debris. A misaligned dropout can lead to poor hub engagement and premature bearing wear.
Installing the Rear Hub
- Insert the hub into the rear dropouts while aligning the freehub body on the drive side.
- Ensure the quick-release skewer passes through the hollow axle smoothly without resistance.
- Tighten the skewer to achieve a secure fit—firm but not overtightened. Campagnolo recommends a torque range of 5–7 Nm for the skewer clamping force.
- Check that the wheel sits centered in the frame. Adjust as necessary before tightening fully.
Installing the Front Hub
- Insert the front hub into the fork dropouts.
- Ensure correct seating of the end caps against the fork faces.
- Tighten the skewer evenly, ensuring no lateral play when the wheel is spun.
Once installed, spin both wheels to verify smooth operation without resistance or lateral movement.
Adjustment of the Campagnolo Bora One Hub
The Bora One’s cup-and-cone system allows fine adjustment of bearing preload, ensuring that bearings neither bind nor rattle.
Checking Bearing Play
Hold the rim with one hand and rock it side to side. A slight movement at the rim may indicate bearing play. Conversely, a stiff or gritty feel means the preload is too tight.
Adjusting the Bearing Preload
- Use two cone wrenches to hold the locknut and adjusting cone on the non-drive side.
- Loosen the locknut slightly while holding the cone steady.
- Turn the adjusting cone in small increments (typically 1/8 turn at a time) until play disappears but the wheel spins freely.
- Retighten the locknut while maintaining the preload setting.
- Recheck by installing the wheel in the frame and clamping it. The hub should rotate smoothly with no side play.
Campagnolo’s precise bearing interface means that correct preload adjustment is critical to performance. Always finalize adjustment with the wheel installed in the bike, as clamping pressure affects bearing alignment.
Maintenance of the Campagnolo Bora One Hub
Routine maintenance extends the lifespan of the Bora One hub and keeps rolling efficiency optimal.
Cleaning
Clean the exterior of the hub shell and freehub body regularly using a damp cloth. Avoid degreasers or solvents near bearing seals. Remove the cassette periodically to clean the splines and lubricate them lightly to prevent corrosion.
Lubrication and Bearing Service
Campagnolo recommends bearing inspection every 5,000–7,000 km depending on riding conditions.
- Remove the axle assembly using appropriate tools.
- Extract the bearings using the Campagnolo bearing puller.
- Clean the bearing races and cones thoroughly.
- Apply a thin layer of Campagnolo-specific grease or equivalent high-quality ceramic grease.
- Reinstall the bearings with a press, ensuring full seating and alignment.
- Reassemble and adjust preload as described above.
Freehub Body Maintenance
The Bora One’s freehub mechanism benefits from light oil lubrication rather than heavy grease.
- Remove the freehub body from the axle.
- Clean the pawls and springs.
- Apply a drop of thin hub oil on each pawl to ensure quiet and efficient engagement.
- Reassemble and confirm smooth engagement without skipping.
Troubleshooting Common Issues
Rough Bearing Feel
A rough rotation often indicates contamination or excessive preload. Clean and regrease the bearings, ensuring correct adjustment.
Freehub Noise or Slippage
If engagement is inconsistent, inspect the pawls and springs for dirt or worn surfaces. Clean and re-lubricate with light oil.
Lateral Play
Play after proper installation may result from under-tightened cones. Recheck bearing preload with the wheel installed.
Customization and Optimization
The Bora One hub allows several performance adjustments and upgrades:
- Ceramic Bearing Upgrade: While Bora One hubs[paid link] come with USB bearings, upgrading to Campagnolo’s CULT bearings provides even lower friction.
- Freehub Compatibility: Available in both Campagnolo and Shimano HG versions. Always confirm spline type before replacing the freehub body.
- Axle Conversions: The hub supports quick-release systems only; it is not compatible with thru-axle frames.
Optimizing spoke tension and correct bearing preload contributes significantly to overall wheel stiffness and responsiveness.
Comparison: Bora One vs. Bora Ultra
While the Bora One hub uses USB ceramic bearings, the Bora Ultra employs CULT (Ceramic Ultimate Level Technology) bearings, offering superior smoothness and reduced maintenance intervals. The Ultra also features lighter carbon hub shells and titanium freehub components, reducing rotational mass. However, the Bora One remains the more serviceable and cost-effective choice for most riders, offering 95% of the Ultra’s performance at a more accessible price.
Compatibility Overview
The Bora One hub is fully compatible with:
- Campagnolo 9-, 10-, 11-, and 12-speed drivetrains.
- Shimano 11-speed systems (with corresponding freehub version).
- Campagnolo quick-release skewers and wheel bearings only.
Always use Campagnolo-specific tools and lubricants to maintain warranty coverage and mechanical integrity.
Conclusion
The Campagnolo Bora One hub embodies the brand’s commitment to precision, smoothness, and long-lasting performance. With proper installation, regular maintenance, and careful bearing adjustment, this hub can deliver years of flawless performance. Whether you’re training, racing, or maintaining high-end equipment, understanding its design and servicing it correctly ensures every ride feels as smooth as the first.