How can I tell if it's a 105 or an Ultegra cassette?
I have a 9 speed shimano cassette that I am trying to identify.
I have been told it's Ultegra but I suspect it is 105...
How can I tell the difference?
In fact what is the difference between 105 and ultegra?
I do not have the original lock ring so I cannot check the serial number, as that is on the ring and not on the cassette itself.