[Closed] Removing Magura Disc Rotors

That's standard centerlock, should undo with a Shimano external BB tool. The spanners fit better than the socket type.

BB tool. count the number of slots and measure the diameter and you should be able to narrow down which you need. though id have thought would be the shimano one, as its a shimano lockring

Yes it's a Shimanoe one.

Within Shimano lockrings, are there are number of different options to choose from?

They made the BB cups smaller in the last round of updates so there's 2 sizes floating around. You should need the standard one which is the larger of the two.

@reluctantjumper & @tomhoward

Thanks very much. A big help. I'll get one ordered 🙂

Thanks, Mark

there’s 2 sizes floating around.

There's actually 3 sizes now.
The original, new XT and new XTR.

I've just taken a closer look at mine.

It has 16 notches and just over 4cm diameter.

Hopefully this should narrow it down to one of the Shimano options.

Thanks all, Mark

Can you still use the Shimano cassette removal tool as well these days?

Mine looks like it should fit but not tried.

You need a 44mm HT2 bb tool. Any of the following will work...

https://www.freewheel.co.uk/park-tool-bbt-192-bottom-bracket-tool-16-notch-44mm-qkbbt192
https://www.freewheel.co.uk/shimano-workshop-hollowtech-ii-bottom-bracket-spanner-tlfc32
https://www.freewheel.co.uk/shimano-workshop-hollowtech-ii-bottom-bracket-wrench-tlfc36
https://www.freewheel.co.uk/shimano-workshop-hollowtech-ii-bottom-bracket-socket-tlfc33
https://www.freewheel.co.uk/wheels-manufacturing-bottom-bracket-wrench-485-44-mm-wmbb4844
https://www.freewheel.co.uk/park-tool-bbt-9-external-cup-bb-hollowtech-ii-tool-qkbbt9

Brill, Thats great thanks