How to Remove a Shimano Dura Crank

Written by justin wash
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How to Remove a Shimano Dura Crank
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Shimano's Dura-Ace cranks are considered by many in the cycling community to be the lightest, stiffest and most power-effective bicycle cranks on the market. The cranks can be found on most high-end road bikes in the United States. They are known for their dependability and low-friction design. Fortunately, the cranks are also easy to install and remove at home, thanks to their two-piece design. Whether you're selling or simply cleaning your Dura-Ace cranks, remove them yourself, rather than spending time and money at your local bike shop.

Skill level:
Moderate

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Things you need

  • Shimano crank tool
  • Hex wrench set
  • Rubber mallet

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Instructions

  1. 1

    Set the bicycle in a work stand or on its kickstand so that it will not fall over while you are working. If you do not have a work stand or a kickstand on the bicycle, turn the bike upside down on its handlebars and seat.

  2. 2

    Use the Shimano crank tool to remove the rubber cap on the non-drive-side crank arm and expose the crank spindle. This cap keeps dust and dirt out of the bottom bracket but must be removed to take off the crank arm.

  3. 3

    Loosen the non-drive-side crank arm bolts with a 5 or 6mm hex wrench. Different versions of the Dura-Ace crank use different sized bolts, so be sure you use the correct wrench for your crank to avoid rounding off the crank bolts.

  4. 4

    Grab the non-drive-side crank arm firmly in your hands and pull it off the crank spindle. If the arm does not come off easily, wiggle it back and forth on the spindle to remove it. Don't use excessive force to remove the crank arm.

  5. 5

    Move to the other side of the bicycle and pull the chain off the chainring. Pull directly backward on the drive-side crank arm to remove it from the bicycle's bottom bracket. The spindle will slide out as part of the drive-side arm. If the spindle is difficult to move, you may lightly tap it out with a rubber mallet.

Tips and warnings

  • To reinstall your Dura-Ace cranks, simply replace the spindle and drive-side crank arm, put the non-drive-side crank arm on the spindle, tighten down the crank arm bolts and reinstall the crank arm dust cap.

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