Freehub. When gearing inevitably wears out, with the freehub you only change out the gears (cogs or cogset). With the freewheel you replace the entire assembly, including the ratcheting mechanism and bearings. OTOH freewheel assemblies can be found rather cheap, so the economy of of it isn't that clear-cut. A more definite reason is that freewheels leave more of the axle unsupported, (the bearing is located closer to the centre of the hub) which makes freewheel wheels more prone to broken and bent axles if you want to run 7-8 speeds.
Depends on if it's a freewheel or a freehub design. For a freewheel you need the appropriate freewheel puller. For a freehub you need a splined lockring tool.
Converting a bicycle from a freewheel to a freehub system involves replacing the rear wheel hub with a freehub-compatible one, along with a compatible cassette and possibly a new derailleur. This upgrade allows for smoother pedaling and better performance. It is recommended to consult a professional bike mechanic for assistance with this conversion.
A freewheel and a freehub are both components in a bicycle drivetrain that allow the rear wheel to spin freely when coasting. The main difference is that a freewheel incorporates the ratcheting mechanism into the sprockets, while a freehub has the ratcheting mechanism built into the hub itself. Freehubs are generally more durable and allow for easier maintenance and upgrading of the cassette. Freewheels are simpler and easier to replace, but can be less efficient and prone to damage.
Sounds like your freewheel/freehub is broken/gummed up and needs servicing or replacement.
A freehub and a freewheel are both components of a bicycle's drivetrain, but they have key differences. A freehub is a more modern design that incorporates the ratcheting mechanism inside the hub, while a freewheel has the ratcheting mechanism built into the gear cluster. The main impact of these differences is on performance and maintenance. Freehubs are generally more durable and allow for smoother shifting, while freewheels are simpler but may require more frequent maintenance. Freehubs also allow for more precise gear changes and are typically easier to service. Overall, freehubs are considered to be a more reliable and efficient option for high-performance bicycles.
Depends on what hub you have, and how you want to do the change. If your current hub has a multi-speed freewheel you will need a freewheel puller. If your current hub is a freehub you will need a chain whip and a lockring tool. If your current hub is an IGH, all you need to do is to unhook your shifter cable.
Bikes with external gears are available in two different rear wheel designs. One is called a freewheel, in which the sprocket cluster together with the one-way clutch that makes coasting possblke is treated as one unit. The other is the freehub design, where the one-way clutch and the sprocket cluster are treated as separate units. With a freewheel you replace the chutch bit too when the sprockets gets worn, with a freehub you only replace the sprockets. Freehubs also have the bearings further apart which makes them less prone to bending/breaking the axle.
To remove a freehub from a bicycle wheel, you will need to first remove the cassette from the freehub. Then, use a specific tool called a freehub removal tool to unscrew the freehub from the wheel hub. Once the freehub is unscrewed, it can be easily removed from the wheel.
Either you've unknowingly bought a fixie, which is meant to work like that. Or your freewheel/freehub is broken/gummed up and needs servicing or replacement.
To remove a freehub using a freehub removal tool, first, insert the removal tool into the freehub body. Then, turn the tool counterclockwise to loosen and remove the freehub from the hub. Make sure to hold the wheel securely while removing the freehub to prevent any damage.
The only thing I can think of that would make a sound on a regular BMX would be the ticking from the pawls in the freewheel/freehub mechanism - the one way clutch that allows you to keep the pedals still while rolling forward.
To remove a freehub body from a bicycle wheel, you will need to first remove the cassette from the freehub body. Then, use a specific tool called a freehub removal tool to unscrew the freehub body from the hub. Turn the tool counterclockwise to loosen and remove the freehub body.