How to Install, Adjust, and Maintain the Bora Ultra Two Wheelset

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The Campagnolo Bora Ultra Two [paid link] is a high-performance, full-carbon wheelset designed for road cyclists seeking speed, aerodynamics, and lightweight efficiency. These wheels offer outstanding stiffness, precise handling, and excellent power transfer, making them a top choice for professional and enthusiast riders alike. However, to ensure optimal performance, proper installation, adjustment, and maintenance are essential.

This guide covers everything you need to know about setting up your Bora Ultra Two [paid link] wheels, maintaining them for longevity, and troubleshooting potential issues to keep them performing at their best.

Tools Required

  • Cassette lockring tool [paid link]
  • Torque wrench [paid link] (preset for carbon components)
  • Tire levers
  • Track pump or CO₂ inflator
  • Valve extenders (for deep-section rims)
  • Spoke wrench (for minor tension adjustments)
  • Grease and carbon assembly paste
  • Clean microfiber cloth
  • Isopropyl alcohol (for cleaning braking surfaces)

Installing the Bora Ultra Two Wheelset

1. Preparing the Frame and Components

Before installing the Bora Ultra Two [paid link] wheelset, ensure that your frame, fork, and dropouts are clean and free from dirt or debris. Check the following:

  • Dropouts should be free of old grease or dirt.
  • The braking surface (for rim brake versions) should be free from oil or contaminants.
  • Your quick-release skewers or thru-axles should be inspected for wear.

2. Installing the Cassette

  1. Apply a small amount of grease to the freehub splines to prevent corrosion.
  2. Align the cassette properly with the splines, ensuring the largest cog is correctly positioned.
  3. Tighten the lockring using a cassette tool and torque it to 40Nm for proper security.

3. Mounting the Wheels

  1. For Rim Brake Models: Align the wheel within the dropouts, ensuring the braking surface is properly positioned.
  2. For Disc Brake Models: Insert the wheel into the frame and ensure that the rotor aligns with the brake caliper.
  3. Secure the wheel using a quick-release skewer or thru-axle, tightening to the manufacturer’s recommended torque value.
  4. Spin the wheel to check for any rubbing against the brake pads or frame.

Adjusting the Bora Ultra Two Wheelset for Optimal Performance

1. Truing and Tensioning the Spokes

  • The Bora Ultra Two uses Campagnolo’s G3 spoke pattern for increased stiffness and aerodynamics.
  • If you notice slight wobbling, use a spoke wrench to make micro-adjustments, tightening or loosening opposing spokes in small increments.
  • Always check the tension using a spoke tension meter for uniformity.

2. Brake Pad Alignment (Rim Brake Models)

  • Campagnolo recommends specific brake pads for carbon rims. Do not use standard rubber pads, as they can damage the braking surface.
  • Position the pads so they do not touch the tire, ensuring even contact with the rim.
  • Adjust pad clearance using the barrel adjuster to prevent unnecessary friction.

3. Hub Preload Adjustment

  • The CULT (Ceramic Ultimate Level [paid link] Technology) bearings in the Bora Ultra Two require minimal maintenance but must be properly adjusted.
  • If you detect side-to-side movement in the hub, adjust the preload tension using a 5mm Allen key until play is eliminated without excessive drag.

Routine Maintenance to Extend Lifespan

1. Cleaning the Wheels

  • Use isopropyl alcohol and a microfiber cloth to clean the braking surface after each ride to remove debris.
  • Avoid high-pressure water jets, as they can force contaminants into the bearings.

2. Bearing Maintenance

  • The CULT bearings are designed for ultra-low friction and water resistance. However, regular inspections ensure longevity:
    • Every 5,000km, remove the hubs and check for any signs of wear.
    • Apply a thin layer of Campagnolo grease if needed.

3. Checking Spoke Tension

  • Monitor spoke tension every 3,000–5,000km to ensure even distribution.
  • If you detect loss of tension, use a spoke tension meter to make necessary corrections.

4. Inspecting the Freehub

  • The Campagnolo freehub should be removed and cleaned periodically.
  • Apply light grease to prevent excessive wear and noise.

Troubleshooting Common Issues

1. Brake Rub on Rim Brake Models

  • If you experience brake rub, check for wheel misalignment or uneven brake pad positioning.
  • Adjust the quick-release skewer and re-center the wheel in the dropouts.
  • Fine-tune brake pad clearance using the barrel adjuster.

2. Excessive Road Noise or Vibration

  • Inspect the bearings and freehub for signs of wear.
  • Ensure your tire pressure is within the recommended range (90–120 psi for tubulars, 80–110 psi for clinchers).

3. Loss of Spoke Tension

  • Check for loose or broken spokes and adjust as needed.
  • If spokes repeatedly loosen, the wheel may need professional truing.

4. Freehub Slipping

  • If the freehub skips under load, it may need cleaning and lubrication.
  • Disassemble the freehub and apply a light layer of grease on the ratchet mechanism.

Conclusion

The Campagnolo Bora Ultra Two is a premium wheelset that delivers top-tier performance when properly installed, adjusted, and maintained. Regular upkeep, including brake pad alignment, spoke tensioning, and bearing maintenance, ensures long-lasting reliability and efficiency. By following the steps outlined in this guide, you’ll maximize the longevity of your wheels and maintain peak performance on every ride.