Introduction

Installing a tube.

Tools

Parts

Image 1/1:
  • Using the 4mm Allen wrench, partially unscrew the 4 (22mm) hex screws on the front of the axle casing to allow the axle to slide freely.

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Image 1/2: Push the axle screw to reveal the axle rod on the other side. Image 2/2: Push the axle screw to reveal the axle rod on the other side.
  • Using the 8mm Allen wrench, loosen the axle screw until 1/2 of the axle screw is visible.

  • Push the axle screw to reveal the axle rod on the other side.

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Image 1/1: Hold the wheel when pulling out the axle rod so that the bike does not fall.
  • Using the Allen wrench, finish unscrewing the axle screw and pull it out.

  • Hold the wheel when pulling out the axle rod so that the bike does not fall.

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Image 1/1:
  • Pull the wheel from the fork.

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Image 1/1: Bike tubes come with one of two standard valve types: presta and schrader. These guides show the installation of a tube with a presta valve.
  • Look at your tire and determine the correct tube size by locating the number (formated ## x #.##) on the wall of the tire.

  • Bike tubes come with one of two standard valve types: presta and schrader. These guides show the installation of a tube with a presta valve.

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Image 1/3: Remove the spacer that holds the valve in place against the rim of the wheel. Image 2/3: Open the valve by turning the nut and pressing the valve in to release air pressure from the tube. Image 3/3: Open the valve by turning the nut and pressing the valve in to release air pressure from the tube.
  • Unscrew the cap covering the valve.

  • Remove the spacer that holds the valve in place against the rim of the wheel.

  • Open the valve by turning the nut and pressing the valve in to release air pressure from the tube.

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Image 1/3: Push down on the tire lever until the edge of the tire is higher than the edge of the rim. Image 2/3: Insert a second tire lever adjacent to  the first. Image 3/3: Slowly work one tire lever around the rim until the whole tire is loose.
  • Slide the tire lever between the tire and the rim.

  • Push down on the tire lever until the edge of the tire is higher than the edge of the rim.

  • Insert a second tire lever adjacent to the first.

  • Slowly work one tire lever around the rim until the whole tire is loose.

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Image 1/2: Remove the tube from the tire. Image 2/2: Remove the tube from the tire.
  • Press the valve through the rim of the wheel.

  • Remove the tube from the tire.

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Image 1/1:
  • Partially inflate the tube.

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Image 1/2: Push the tube into the tire all the way around the rim of the wheel. Image 2/2: Push the tube into the tire all the way around the rim of the wheel.
  • Push the valve through the rim.

  • Push the tube into the tire all the way around the rim of the wheel.

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Image 1/1: Make sure not to pinch the tube between the bead of the tire and the rim. Failure to do so may cause a pinch flat.
  • Push the bead of the tire back into place around the rim.

  • Make sure not to pinch the tube between the bead of the tire and the rim. Failure to do so may cause a pinch flat.

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Image 1/1: A suggested range of air pressure is located on the wall of the tire (formatted ##-##psi).
  • Inflate the tube to the desired air pressure.

  • A suggested range of air pressure is located on the wall of the tire (formatted ##-##psi).

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Image 1/2: Image 2/2:
  • Close the valve and replace the cap.

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Finish Line

One other person completed this guide.

Sterling Grande

Member since: 10/08/2012

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4 Guides authored

Team

Cal Poly, Team 9-14, Amido Fall 2012 Member of Cal Poly, Team 9-14, Amido Fall 2012

CPSU-AMIDO-F12S9G14

4 Members

6 Guides authored

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