How Does A Bike Cassette Work
Tools for changing a bike cassette.
How does a bike cassette work. The freewheel is a 6 speed shimano but they all pretty much the same. Cranks come in a number of forms for road bikes including standard compact super compact. A typical cassette can have anything between five and 13 sprockets although most modern bicycle drivetrains use either 9 10 or 11. A bicycle cassette is the cluster of sprockets located on the rear hub of your bike slotting onto a freehub body and held firmly in place with a threaded cassette lockring.
Spin the sprockets backwards. Ever wondered how bike gears and gear ratios work. Cogsets come in two varieties freewheels or cassettes of which cassettes are a newer development although cassettes and freewheels perform the same function and look almost the same when installed. It s a simple design and easy part to work on and fix as long as you are capable of removing your rear wheel and have the right tool for the brand of cassette used on your bike.
A typical gear spread for an mtb cassette the amount of teeth on the smallest and largest sprockets would be 11 34t. But if it happens the day before a bike event it s nice to have. Find the tool fitting on the sprocket set. The lockring is designed to hold the cogs of the cassette in place on the hub.
I take an old freewheel apart and show you the parts that are inside and talk about how it works. To determine if a sprocket is a freewheel or cassette system remove the rear wheel from the bike. What gearing did lance armstr. Front and rear derailleurs do all the hard work of moving the chain from one sprocket or chainring to the next.
You can have a bicycle shop mechanic do it for you because it s a quick and inexpensive repair. In order to remove and replace your cassette you need to unscrew this lockring. Thus a 11 28t cassette would denote a cassette with a smallest 11 tooth and largest 28 tooth sprocket. Refers to an individual gear within the cassette block.
You ll need three tools to do this. A chain whip a cassette lockring remover and a large adjustable crescent wrench. What s the difference between a standard semi compact and compact chainset. If the tool fittings do not spin with the cogs it is a threaded freewheel system.
Most mtb bikes use 9 10 11 or 12 speed cassettes although more budget models may use 8 or less commonly 7 speed.
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