I guess if you want some calipers and call ap they are bound to use something from an existing design as the basis. Small vehicle manufactures can’t generally afford to pay for all the design, toiling, testing etc so they agree the part manufacturer can sell the part changed slightly and usually not for the same vehicle. The canley ones are going to end up looking like caterham ones by the fact they are all based around triumph mounting and hub designs at some point in the past. If you look at the current caterham ally 2 pots they look pretty much identical to lotus Elise front 2 pots. There will be differences but the base casting is probably the same