Avid BB7 Brake Pad Removal & Replacement, Brake Adjustment on Surly Disc Trucker

How to Replace and Adjust Avid BB7 Brake Pads on a Surly Disc Trucker

1. Understand the Avid BB7 Brake System:

   • The Avid BB7 is a cable actuated brake system with an outer lever arm that attaches to the outside brake pad. The inner pad remains stationary.
   • The system allows for adjustment of both the inner and outer brake pads as they wear out.

2. Prepare for Brake Pad Replacement:

   • Shift the chain to the smallest sprockets in the front and rear to provide slack.
   • Use the quick-release on the Surly Disc Trucker to remove the wheel.
   • Inspect the rotor to ensure it is in good condition.

3. Remove and Replace Brake Pads:

   • Turn the adjustment dials on the brake caliper to move the outer pad closer to the rotor.
   • Use a T25 bolt or turn the dials by hand to adjust the pads.
   • Remove the old brake pads using needle-nose pliers.
   • Install the new brake pads ensuring the ears align with the caliper clip and the spring sits between them.

4. Adjust the Brake Pads:

   • Slide the new brake pads into place, ensuring proper alignment and engagement with the caliper clip.
   • Check that the pads are securely in place and adjust if needed.
   • Ensure the rotor is no longer deflecting and adjust the inner brake pad closer to the rotor if necessary.

5. Fine-Tune the Brake System:

   • Test the lever travel and adjust the outer brake pad for proper engagement.
   • Use the barrel adjuster to fine-tune the brake pads' position.
   • Check for any cable slack and adjust if needed by loosening the pinch bolt at the caliper.

6. Final Checks and Recommendations:

   • Ensure the brake pads have proper spacing and alignment with the rotor.
   • Verify there is no rubbing at the rear wheel.
   • Consider replacing the brake pads if they have less than 2mm of material left for optimal braking performance.

7. Maintenance Tips:

   • Regularly inspect and adjust your brake pads for optimal performance.
   • Utilize the adjustment features of the Avid BB7 system for fine-tuning your braking experience.
   • Refer to manufacturer specifications for pad spacing, rotor deflection, and caliper adjustments.

8. Conclusion:

   • By following these steps, you can effectively replace and adjust the brake pads on your Surly Disc Trucker equipped with Avid BB7 brakes.
   • Regular maintenance and proper adjustments will ensure your brakes perform optimally for safe riding.

Remember to always prioritize safety when working on your bike's braking system and consult a professional if you are unsure about any steps in the process.