How to Replace a Cable in a Shimano Sl-RS40


The Shimano SL-RS40 "Tourney Revo" is a three-speed gear twist shifter with handlebar grip mount. Just as with any other parts on a bike, cables from the SL-RS40 may need to be replaced over time from heavy usage, if they stretch or are damaged. Replacement cables can be purchased at a bike shop or online and a cyclist can do the replacement job themselves at home or leave the bike at the shop.

Things You'll Need

  • Phillips-head screwdriver
  • Replacement shifter cable
  • Shift down to the hardest gear.

  • Take a Phillips-head screwdriver and loosen the plastic screw on your shifter.

  • Remove the plastic screw.

  • Push the cable completely out of the shifter. The cable end should pop out where the screw was.

  • Keep the shifter in the most difficult gear.

  • Slide the new cable through where the old cable came out.

  • Tighten the screw back down tightly with the Phillips head.

  • Hook up the new cable into the derailleur from which you removed the old cable.

Tips & Warnings

  • Inspect the cables on your bike often to make sure this isn't damage or too much wear and tear.

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  • Ryan Stedford, Head Mechanic: Kompetitive Edge: Littleton, CO
  • Photo Credit George Diebold/Photodisc/Getty Images
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