2017 BMW S1000RR w/stock Sachs 46mm ZF forks, tool questions...

[CaseyAlbert]

As I like learning new things, I decided to tear into the forks on my bike. I picked up a spring compressor tool and took care of stage 1, but would like to remove the cartridges to clean the innards out as much as possible.
Does anybody have an idea of exactly what tool I need to hold the cartridges to remove the allen bolts from the bottom of the fork tubes? I see one from the UK that has the 4 teeth and says it is for the Ohlins cartridges, but I haven't been able to confirm if they are the same as the Sachs.
Any advice is more than welcome.
Thank you in advance!
Casey Albert

 

[CaseyAlbert]

Thanks for those that dropped by.
I ordered a universal cartridge tool from KTech Suspension....and a piston pull up rod that has the 13mm threads and actually says for the "Sachs" forks even though it didn't show up in the BMW search. Just had to keep looking. I am keeping my fingers crossed that the cartridge holder works.
My bike has about 5,000 miles on it(about 4,000 on the track). I was amazed at how much sludge drained from the tubes!
Thanks again!