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Launched in late 2014, generation 3 BBs feature replaceable bearings
  • Launched in late 2014, generation 3 BBs feature replaceable bearings

  • Bearings can be replaced on BSA threaded, PF30 and BB30 bottom brackets

    • Due to fit constraints BB92 bearings cannot be replaced as the bearing itself presses into the frame

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To remove bearings, use a Park Tool headset cup removal tool Slide the tool through the BB cup until it sits on the lip of the bearing Tap the tool to remove the bearing
  • To remove bearings, use a Park Tool headset cup removal tool

  • Slide the tool through the BB cup until it sits on the lip of the bearing

  • Tap the tool to remove the bearing

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Remove the bearing and seal from the cup Clean the inside of the cup with alcohol
  • Remove the bearing and seal from the cup

  • Clean the inside of the cup with alcohol

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To install the new bearing, lightly grease the inside of the cup Lightly press a new 6806 bearing into the cup Lightly press a new 6806 bearing into the cup
  • To install the new bearing, lightly grease the inside of the cup

  • Lightly press a new 6806 bearing into the cup

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Using a BB30 bearing press, press the bearing into the cup
  • Using a BB30 bearing press, press the bearing into the cup

  • Be sure the bearing goes in straight

  • Here we are using an Enduro tool, but tools for BB30/6806 bearings are offered by many major tool manufacturers

  • Press the bearing in until it stops against the back of the BB cup

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Install the outer seal by pressing it into the cup The red side of the seal will face out Working around the outer diameter of the seal, tuck the lip of the seal into the groove in the BB cup
  • Install the outer seal by pressing it into the cup

    • The red side of the seal will face out

  • Working around the outer diameter of the seal, tuck the lip of the seal into the groove in the BB cup

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It may be necessary to use a tool to ensure the seal is fully seated in the groove
  • It may be necessary to use a tool to ensure the seal is fully seated in the groove

  • Wiggling the seal side to side in the cup can make it easier to seat the seal

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Conclusion

Thanks for reading, now get out there and ride!

The Hive

Member since: 12/05/2012

51 Guides authored

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