Introduction

A mountain bike's brakes are extremely crucial to any trail rider. Brakes can stick due to debris in the sleeved brake line and in the lever. This repair requires little knowledge about bikes and can be done by anyone.

Remove the grip from the bike's handle bar. Use short twisting motions. If the grip is really stuck onto the bar, some soapy water can help it come off easier. Use short twisting motions. If the grip is really stuck onto the bar, some soapy water can help it come off easier.
  • Remove the grip from the bike's handle bar.

  • Use short twisting motions. If the grip is really stuck onto the bar, some soapy water can help it come off easier.

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Unscrew the hex screw on the brake fixture on the handle bars with the allen wrench. Once the brake fixture is loose, pull off the fixture form the handle and set aside.
  • Unscrew the hex screw on the brake fixture on the handle bars with the allen wrench.

  • Once the brake fixture is loose, pull off the fixture form the handle and set aside.

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Unhook the brake line from the bike's body by sliding the line backwards and pulling up in one motion. If the brake line is too tight to pull back, you may have to remove the rear tire to let the brake pads move farther. If the brake line is too tight to pull back, you may have to remove the rear tire to let the brake pads move farther.
  • Unhook the brake line from the bike's body by sliding the line backwards and pulling up in one motion.

  • If the brake line is too tight to pull back, you may have to remove the rear tire to let the brake pads move farther.

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Remove the brake line from the brake assembly you removed in step one. Unscrew the adjustment screw all the way out of the assembly. Push brake line forward and slide the line out of the slot in the brake handle.
  • Remove the brake line from the brake assembly you removed in step one.

  • Unscrew the adjustment screw all the way out of the assembly.

  • Push brake line forward and slide the line out of the slot in the brake handle.

  • Check the spring of the brake lever without the line connected. If it does not retract well, you can clean it with soapy water.

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To remove the brake line from the rear brake pads. Unhook the line from the metal insert. Unscrew the hex bolt with an allen wrench.
  • To remove the brake line from the rear brake pads. Unhook the line from the metal insert.

  • Unscrew the hex bolt with an allen wrench.

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After you have removed the bike's brake line, take the whole assembly wipe with a soapy water solution to remove rust, dirt, grease and anything else stopping the line from traveling freely.
  • After you have removed the bike's brake line, take the whole assembly wipe with a soapy water solution to remove rust, dirt, grease and anything else stopping the line from traveling freely.

  • After removing all of the debris, apply chain oil to another rag and wipe oil evenly onto the line.

  • Careful the line itself could be frayed anywhere due to age and be sharp.

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Conclusion

Once finished, put back together the brake assembly. Then test the mobility of the brakes before riding. Happy Riding!

2 other people completed this guide.

Spencer Solano

Member since: 04/09/2015

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Cal Poly, Team 30-1, Green Spring 2015 Member of Cal Poly, Team 30-1, Green Spring 2015

CPSU-GREEN-S15S30G1

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