Dart 2 Forks, Post mount to IS for Magura Julie? confused

Hi guys,

building a bike for mate from old bits. Thought I had everything sorted then realised the Magura Julie front disc caliper (IS fitting) wont fit the Dart 2 forks, I’ve purchased an adapter but the caliper position wont align with the disc location..

its a 160mm Shimano centre lock disc. have I installed that wrong?

pics below as its hard to explain..
basically can someone explain what type of adapter I need please?
I have a spare 203mm rotot and post mount extension adapter if that will help..

do I need something like this ?

thanks

Yes, you’ll need something like that Hope HBSM20 mount, but if the caliper was previously running a 160mm rotor on the front then you’ll need a 20mm bigger rotor.

thanks for info