Currently I have a Tektro Auriga brake system. I don't like the Auriga brakes at all, so I decided to replace them with Deore XT BR-M800.
At front I have 180mm disk and between the caliper and fork is an adapter. I'm curious about the rear caliper. Will the new caliper fit without an adapter with a 160mm disk? Here are pictures of my current brake system.(couldn't upload directly due to image sizes)