What is a free wheel on a bicycle?
In mechanical or automotive engineering, a freewheel or overrunning clutch is a device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft. In a fixed-gear bicycle, without a freewheel, the rear wheel drives the pedals around.
How do I remove a freehub body?
The axle is independent of the freehub.
- Remove set screw from side of drive side locknut.
- Hold non-drive side cone with cone wrench. Loosen and remove drive side locknut.
- Pull freehub to remove. Use care not to loose small parts. Note orientation of pawls as you remove freehub.
Can you remove a sprocket?
You’ll need two chain whips to loosen the sprocket. One to keep the cassette in place while you unscrew the sprocket with the other. I used a chain whip from Decathlon to loosen the sprocket.
How do you remove a sprocket?
Wrap the chain whip tool around the largest sprocket and secure it. The chain whip tool holds the cassette in place so that you can loosen the lockring. Place the sprocket removal tool around the lockring. Use a crescent wrench to turn the lockring counter-clockwise, so that you can loosen and remove it.