How Does A Bike Hub Work
If you didn t quite catch some of the detail in the video or just want a closer look at the inner workings then here are some close up shots and even more information.
How does a bike hub work. Typical efficencies for internal hubs in good condition are between 94 and 98. You can read more about how these motors work in our main article about hub motors. In electric bikes they sit inside the hub at the very center of a relatively large spoked wheel. How do you compare the range of a hub gear to derailleur gears.
A hub gear bike s chainring sprocket and wheel size will give its direct drive gear. It must be light so it doesn t add too much weight to the rest of the bike. A bike with a coaster brake hub goes forward when you pedal. The hub motor of an electric bike.
The brakes consisting of the actuators on the handlebars the brake cable the brake calipers. Gyde lund 32 859 views. First you need to know how derailleur gears work. If you took off the casing this is the kind of thing you d see.
Because this is part of the drive train of the bicycle its efficiency greatly effects that of the whole bicycle. I take an old freewheel apart and show you the parts that are inside and talk about how it works. The wheels the wheels are made of a hub the spokes the metal rim and the rubber tire. The front fork is the movable part of the frame that holds the front wheel.
I show how a bicycle coaster brake hubs works including a cutaway shot of the hub so you can see the inside of it as it is working. Subscribe to dirt tv here http bit ly 1kslm1g find the best v. Internal bicycle gearbox demonstration duration. How does a chris king hub r45 work and what makes it different duration.
All the ratios are based on this and will be listed by the manufuacturer for example 0 75 1 1 33 for a 3 speed. Take a look at the hub of an electric bike and probably you ll see it s much fatter and bulkier than on a normal bike. The handlebars and the handlebar stem that connects the handlebars to the frame. Good bearings are a must.
The freehub body a look inside the inner workings of your rear hub. The freewheel is a 6 speed shimano but they all pretty much the same. Hub motors have to be able to produce any combination of speed and torque without a gearbox. They usually work by direct drive but there s a snag.
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