Installing a cassette

[Schwinn-iinng]

Today I installed a new 8 speed Shimano cassette on my road bike but when I gave it a test ride, it would appear the chain does not sit properly on the gears. Each time I pedal one revolution of the gear, the chain would jump a link. I haven't changed the chain either. Would that make a difference?

Can you tell me what I did wrong?

[Birdman]

How many cogs was on the original cassette. 6,7and 8's have the same, 9 and 10 each have a different chain.

Well i'm pretty sure thats how it is.

Mitch.

[Bnej]

You might need a new chain if you haven't changed it - chains tend to stretch out with use at the same time as stretching the teeth on cassettes, so it's normally a good idea to change both at the same time.

[sogood]

You might need a new chain if you haven't changed it - chains tend to stretch out with use at the same time as stretching the teeth on cassettes, so it's normally a good idea to change both at the same time.

+1

[Kalgrm]

You might need a new chain if you haven't changed it - chains tend to stretch out with use at the same time as stretching the teeth on cassettes, so it's normally a good idea to change both at the same time.

+1

[Schwinn-iinng]

Back to the LBS for a chain.
Thanks guys.