How to Use a CO2 Cartridge to Re-Inflate the Rear Wheel of a Road Bike
Christopher Tiran and 5 other contributors
Last updated on Jun 6, 2019
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Introduction
Go to step 1 ↓Do you have a flat tire, but don't have the time nor the strength to fill up your tires with a standard pump? Using a CO2 Cartridge is a quick and easy way to re-inflate your tires without much work compared to pumping tires full of air.
What you need
Tools
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Park Tool TL-1 Tire Lever Set Available for sale on Park Tool
This guide uses just one, but three is ideal.
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Figure out which tire is flat. In this case, the rear wheel is flat.
Ask FixBot
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To easily remove the rear wheel, flip the bike upside down so that it's sitting on the handle bars and seat.
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Disengage the quick-release lever to loosen the wheel.
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Turn the quick-release lever a few times while you hold the cap on the opposite side of the wheel.
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If the spring comes out, place the spring back on the bar and tighten the cap or lever.
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Pull the wheel out.
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Pull the rear shifter into a straight line so the wheel will be able to slide out smoothly.
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Pull out the wheel with one hand while you hold the rear shifter.
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Now that the rear wheel is off the bike, use the tire lever to get under the tire.
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Once the tire lever is under the tire, bring it around the rim of the wheel slowly sliding the tire off wheel.
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Place the inner tube back inside the tire.
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Using the tire lever, pry the tire back onto the wheel.
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Now that the tire is back on the wheel, screw the adapter onto the CO2 cartridge and place it on the valve.
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Fit the wheel back onto the bike.
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Pull the rear shifter into a straight line and place the gears underneath the chain to slide into place.
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Tighten the quick-release lever and close it.
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Twist the lever as you hold the cap on the opposite side as tight as possible.
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Re-engage the brakes.
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Turn the grey lever downwards on the brake, such as in step 2.
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Pedal a little while the bike is lifted slightly off the ground to move the chain back into place.
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Once you're able to place the tire back in place and inflate the tire using the CO2 Cartridge, you're ready to keep riding!
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Team
Cal Poly, Team 17-1, Green Fall 2015 Member of Cal Poly, Team 17-1, Green Fall 2015
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