Mountain Bike Rear Sprocket Wobble

Could this even be normal.
Mountain bike rear sprocket wobble. The cassette on my bike wobbles relative to the axle and i m looking for input. You can also move your rear wheel to adjust chain tension. The most common issue is when the rim wobbles left to right but bike tires can also wobble up and down as well forming egg shaped wheels or small flat spots where the tension isn t quite right up and down. Is it likely to be the cassette that s warped or the hub.
Over time the teeth on the gears start. Is it normal for the rear cassette to wobble on a mountain bike. All multigear mountain bikes are equipped with a high tech component known as the rear derailleur. The rear cassette is a set of concentric gear rings attached to your back wheel.
Is it normal for the rear cassette to wobble on a mountain bike. The bike is a giant seek 2. Each ring is a gear on your bike and the chain which connects to the pedals turns the cassette to power the bike. According to bike expert sheldon brown the rear derailleur features a tension pulley that keeps the chain tight while it moves between the various cogs of the rear cassette.
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