The Regata 100s carriers I have, have a hub bolt spacing of 100mm, but the caliper mounting holes for the sliding pins are ~133mm apart, whilst the corresponding holes on the calipers are ~123mm apart.
I don't know exactly what model Thema the calipers I have came from- Do you happen to know which model Thema/Croma/164 or part number I need to fit the caliper to the Regata 100s carrier mounted on the rear of my X, and thus acheive the 257mm rotor install?
