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Bicycle Glossary - Q

Quick release (brake) - A device which can take various forms. It is a system to allow brakes to open wider than normal so the wheels can be removed and installed. On some brakes, it is a straddle wire (short transverse cable) that can be lifted away from one side of the brake caliper. On others, it is a lever near the adjusting barrel or on a hand lever that can be flipped to allow the brake to open wider.

Quick Release Skewer - A long rod with a threaded knob at one end, and a cam-action lever on the other. This goes through a hollow wheel axle to hold the wheel onto the bicycle. To remove a quick-release wheel, flip the lever so that the mechanism becomes loose. You often have to turn the knob a couple of turns to loosen it enough for the wheel to slide out of the dropouts. To install, put the wheel in position, and try flipping the lever. If it is too loose, flip it back to the open position, and tighten the knob some, then try again. Adjust the knob until some force is required to flip the lever to the closed position, but not enough to hurt your hand. Test the installation by bumping the side of the tire near the brake with the palm of your hand. The wheel should not slip sideways. Short versions of quick release skewers are also used as seatpins. Synonym: Skewer.

Quick Release Seatpin - The same as a quick release skewer, but shorter. This is used to secure the seatpost into the seattube, but can be loosened without tools so the rider can easily adjust the seat height.

Anything missing or need greater coverage? Let me know - Jeff

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Disclaimer

Although I have attempted to cover the major safety issues, I cannot be responsible for your use of this information. Working on bicycles is dangerous if you do it without considering consequences of bolts left loose, known problems which are ignored, things which should be replaced but are glued instead, and so on. Proceed carefully at your own risk and use common sense. Jeff Napier, and all agents associated with this information, do not offer any guarantee or warranty for your use of this information.