![]() If your bike has five gears on the back, it probably has a freewheel. The gear cluster on the rear wheel is either a freewheel or a cassette. If you have two chainrings (a big ring and a little ring,) that setup is called a “double.” If you have three chainrings (big, middle, and little,) you have a “triple” chainring setup. The front sprockets that are attached to the crankarm are called chainrings. So to start things off, let’s get the terminology straightened out: (2×5=10, it’s just simple math.)īut once you learn more about gearing, you’ll see that that is actually a confusing way to describe things. For example, a road bike with two chainrings up front and a five-speed freewheel on the back was a “10 speed,” since the five rear sprockets could be matched with either of the two front chainrings. Getting Started (Practice Makes Perfect)Įver since bicycles came with more than one sprocket on the front and back, they were usually referred to as the number of gear combinations that were offered.Discover How the Shifters and Derailleurs Work.
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