How to Install, Adjust, and Maintain the Ultra-Torque Bottom Bracket from Campagnolo

The Campagnolo Ultra-Torque bottom bracket [paid link] system is a high-performance interface that connects the crankset to the bike frame. Known for its stiffness and efficiency, the Ultra-Torque design uses a Hirth joint in the middle of the spindle to unify two crank arms, allowing for precise power transfer with minimal weight. This guide provides a comprehensive, expert-level [paid link] walkthrough for installing, adjusting, and maintaining the Campagnolo Ultra-Torque bottom bracket [paid link].


Tools Required:

  • 10mm hex wrench
  • Torque wrench [paid link] (with 10mm hex fitting)
  • Campagnolo Ultra-Torque BB cup tool (Campagnolo UT-BB130 or compatible)
  • Grease (preferably Campagnolo or anti-seize compound for BB shell)
  • Threadlocker (medium strength, if threadfit system is used)
  • Soft-faced mallet
  • Clean rags or shop towels
  • Isopropyl alcohol for cleaning

Frame Preparation and BB Shell Inspection

Before beginning the installation, it’s critical to inspect and prep the frame’s bottom bracket shell:

  • Confirm compatibility: The Ultra-Torque bottom bracket [paid link] is available for various shell standards, including BSA (English threaded), ITA (Italian threaded), and Press-Fit versions (e.g., BB86, BB30 with adapters). Use only Campagnolo-certified cups for your specific frame.
  • Clean thoroughly: Use isopropyl alcohol and a clean rag to wipe down the BB shell.
  • Check for damage: Inspect threads (for BSA/ITA) or bearing surfaces (for press-fit) for wear, corrosion, or irregularities. Address issues before continuing.

Installing the Bottom Bracket Cups

Threaded Versions:

  • Apply grease: Coat the BB shell threads lightly with grease or anti-seize.
  • Install cups: Thread the right (drive side) cup clockwise for BSA and counter-clockwise for ITA; then the left side. Use the UT-BB tool and tighten to Campagnolo’s torque specification (35–40 Nm).

Press-Fit Versions:

  • Use appropriate adapters: If your frame uses BB86 or BB30, press-fit cups and spacers must match the specific frame type.
  • Press evenly: Use a bearing press [paid link] to install each cup without tilting or forcing. Grease lightly before pressing.

Crankset Assembly with Hirth Joint

The Ultra-Torque design integrates the axle halves with each crank arm, joined by a Hirth joint:

  • Grease the Hirth joint: Apply a light coat of grease to the teeth of the Hirth joint.
  • Insert crank arms: Slide the right crank arm/spindle through the bottom bracket until the Hirth joint is centered in the BB shell.
  • Join and bolt: Align the left crank arm onto the exposed spindle. Insert the 10mm bolt through the left arm and tighten to 42–60 Nm using a torque wrench [paid link].
  • Tap gently: If needed, use a soft-faced mallet to assist crank insertion without damaging components.

Adjusting the Ultra-Torque System

Although Ultra-Torque does not use traditional preload adjusters, proper installation ensures a precise fit:

  • Check for axial play: Spin the cranks and check for lateral movement. There should be no noticeable play.
  • Wavy washer inspection: The wavy washer on the left side provides necessary tension. If excessive play exists, inspect the washer or consider replacing it.

Routine Maintenance Procedures

Regular maintenance ensures long-term performance and durability:

  • Every 2,000–3,000 km (or after wet rides):
    • Remove crankset
    • Clean Hirth joint and bearing interfaces
    • Re-grease moving and contact points
  • Every 5,000–10,000 km or annually:
    • Remove and inspect BB cups
    • Check for bearing wear or water ingress
    • Replace bearings if roughness is detected

Always re-torque the center bolt after reassembly to maintain the correct interface.


Bearing Service and Replacement

Campagnolo Ultra-Torque bottom brackets use outboard bearings pressed onto the crank spindle:

  • Removal: Use a bearing puller designed for Campagnolo cranksets.
  • Installation: Refit new bearings using a press tool or plastic sleeve to avoid damage.
  • Greasing: Use high-quality grease between the bearing and cup shell before assembly.

Bearings are not user-serviceable but can be replaced with Campagnolo’s original parts or compatible ceramic upgrades for improved performance.


Troubleshooting Common Set-Up Issues

  • Clicking noises under load: Often due to insufficient torque on the center bolt or dry Hirth joint teeth. Disassemble, clean, grease, and reassemble.
  • Creaking during pedaling: This may indicate contamination between the BB cups and the frame. Remove, clean, apply anti-seize or grease, and re-torque.
  • Axial play after install: Check if the wavy washer is present and correctly seated. Ensure center bolt is torqued to specification.
  • Water ingress: Common in wet climates; apply waterproof grease and consider frame sealing or BB sleeve installations.

Customization and Performance Optimization

The Ultra-Torque system allows for subtle performance tweaks:

  • Upgrade to CULT (Ceramic Ultimate Level [paid link] Technology) bearings for reduced friction.
  • Use Ti crank bolts for slight weight savings.
  • Consider an oversized BB sleeve or bearing shield in frames prone to water penetration.

Always ensure that upgrades remain within Campagnolo’s recommended tolerances.


Compatibility with Other Drivetrain Components

  • Ultra-Torque cranksets are designed to work with Campagnolo drivetrains only.
  • Mixing with Shimano or SRAM drivetrains may lead to chainline and Q-factor misalignment.
  • Always use Campagnolo chainrings and front derailleurs for precise shifting performance.

Frame compatibility depends on shell standard and proper cup/adaptor selection.


Final Thoughts

The Campagnolo Ultra-Torque bottom bracket system is a high-quality component offering excellent stiffness and precision. Proper installation and ongoing maintenance are essential to preserve its performance. Understanding the unique assembly method—especially the Hirth joint and wavy washer design—ensures that your drivetrain runs smoothly and efficiently over time.