Skip navigation sign in.
Mountain bike rear sprocket wobble.
The rear cassette is a set of concentric gear rings attached to your back wheel.
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.
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.
The cassette on my bike wobbles relative to the axle and i m looking for input.
Each ring is a gear on your bike and the chain which connects to the pedals turns the cassette to power the bike.
Check for flat spot wobbles or a bike that is not radially true.
All multigear mountain bikes are equipped with a high tech component known as the rear derailleur.
In bikes speed wobble starts when something causes the front wheel to accelerate to one side.
You can also move your rear wheel to adjust chain tension.
This is one of the reasons speed wobbles are much more likely on a road bike than a mountain bike.
Is it normal for the rear cassette to wobble on a mountain bike.
Is it normal for the rear cassette to wobble on a mountain bike.
The bike is a giant seek 2.