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What does a rear derailleur do?
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The rear derailleur is designed to move the chain up and down on the sprockets (or cogs) connected to your rear hub. Together these cogs are known as the rear cassette. By moving to a cog with fewer teeth, the derailleur gives the rider a faster (or higher) gear which is appropriate for flat areas or descents. By moving to a cog with more teeth, the derailleur offers a gear more appropriate for climbing hills (or a lower gear).
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When do I need to replace the cable housings on my bike?
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If your cable housing is stiff, shows signs of damage, such as a kink, or is getting old, it may be a good idea to install replacements. Working on cable housings is not particularly difficult but does require the proper tools.
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- Cable Cutters
- Wire Snips
- Awl or Similar Pointed Tool
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What is a freehub body?
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A freehub is attached to the rear hub of your bicycle. It is a spinning mechanism designed to hold the cassette. Coasting when the pedals are at rest and pedaling are possible thanks to the freehub.
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Start by removing the cassette.
To remove the cassette:
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What does a freewheel do?
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A freewheel makes it possible to coast on a bike. When you are pedaling, the freewheel engages the sprockets, but it allows the rear wheel to turn when the pedals are at rest.
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- A bicycle stand is always recommended
- A special tool designed specifically for your particular freewheel, known as a “freewheel puller”
- An adjustable wrench compatible with the hexagonal section of your freewheel puller
- You may need a bench-mounted vice for particularly stubborn freewheels
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What does the front derailleur do?
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The front derailleur pushes the chain from one chainring to another. It works very similarly to the rear derailleur by shifting the chain so that it falls onto a smaller chainring, or so that is pushes against a larger chainring and eventually catches the teeth. A properly adjusted front derailleur will shift between chainrings without allowing the chain to slip off in either direction.
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What kind of headset do I have?
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A threaded headset gets its name from the threaded steerer tube at the top of a fork. The steerer tube is attached to the inside head tube on a frame with an adjustable race. A threaded headset can be identified easily by the quill-type stem that fits inside the steerer tube. This article will discuss repairs and adjustments of a threaded headset.
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If you’ve been thinking about replacing the pedals on your bike, fear not. It’s actually a really easy task. There is a specialized tool for pedal replacement known as a “pedal wrench,” but it’s not always necessary. Pedal wrenches are advantageous because they are longer, so you get more leverage, and thinner to fit on the thin flat surfaces of the pedal’s spindle. If you can manage with a cone-wrench or a regular open-ended wrench, go ahead. Just remember to grease the threads on the spindles of your new pedals before you install them.
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San Francisco, CA
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Temp:
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20°C
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Wind Chill:
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20°C
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Humidity:
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61%
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Speed:
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34 km/h
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Direct.:
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300°
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Barom.:
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1013.5 mb
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WNW
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Weather Details
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Provided by:
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