I want to swap my 1.2 front brakes for 1.9 d brakes but the 1.2 has soild disc and my 1.9 has vented discs so the vented discs are wider so the 1.2 cage wont fitover the 19 discs but can I take the 1.9 brakes and bolt on to the 1.2 or will have to fit the 1.9 hub on the 1.2 any one done this before