05-16-2011, 04:13 AM
First, figure out whether it is really a cassette you are looking at our a freewheel.
http://sheldonbrown.com/k7.html
Then try to make out any markings on the sprockets maybe find out the brand.
If it is a Shimano compatible cassette then it is easy, use eg. the FR-5G
http://sheldonbrown.com/k7.html
Then try to make out any markings on the sprockets maybe find out the brand.
If it is a Shimano compatible cassette then it is easy, use eg. the FR-5G