2 new nankangs and a caliper repair kit from bigred in the post 🙂
the kit (maybe a vid of how to 🙂)

standard astra g 2.2 calipers are 57/25 as cast into the caliper 57 = piston size in mm and 25= disc width in mm 🙂

will take the front apart next week and fit the new ss brake lines and the new bleed nipples/caps to front an rear i may even do the front bushes 🙂