Skewer removal without quick release I am trying to replace my cassette. I can not use my cassette removal tool as it is blocked by the skewer, so I need to remove it. From what I can see, the skewer is held together by two bolts. I have tried using an adjustable spanner to remove one of these bolts. However, I am finding this impossible because the bolts and the skewer turn together and there is no relative rotation between them.

I think that this problem is similar to the problem described here, and I'm trying out the solution suggested by NFC. I have tried to hold one bolt fast using pliers and using the spanner to turn the other bolt. I have not had success as the pliers slip before I can turn the bolt with the spanner. Is there an alternative solution to my problem?

I have had a lot of trouble finding help because my searches return tutorials on removing a quick release skewer. Apart from the other question I have found a forum post but I did not find it helpful. 

This is the first time I have tried to replace a part of my bike. I might have used some terms incorrectly or I might have the wrong idea about the proceedure that I am trying to carry out.

Thanks for any help.

Pictures:
You have the wrong tool. Your cassette lockring removal tool has a long pin emerging from its centre, which would fit inside the axle of a QR compatible wheel, to keep the tool centred.

What you have named a skewer is actually the axle and yours is solid, so the axle blocks the tool. The correct and simple way to remove your cassette is to get an inexpensive cassette lockring removal tool which is compatible with your wheel, something like this:



Or possibly one with a handle already attached if you don't have adjustable spanner or sockets to suit the size of the tool.

If you start disassembling the wheel axle by removing locknuts, you will have a much larger task which typically requires further tools (cone spanners) and extra skills to accomplish and your tool will still not fit without removing the axle completely. Those skills are worthy to learn, but unnecessary for simply replacing a cassette.