Bit of an odd one this ... my blade has M4 calipers with standard brembo pads, Brembo ORO discs and a Brembo RCS19 MC with braided lines ... they feel superb as expected. When braking hard from speed. I.e. motorway to town I get vibration through the front end and I can't work out what it could be... the lever stays constant, as do the brakes and in fact I simply thought it was the road surface through the tyre ... at low speeds it is fine. A few months ago the forks were rebuilt, wheel bearings replaced as were the discs and pads and it didn't have this vibration. Stripped and cleaned the brakes last night and it is still there. Not sure where to go from here? Any ideas?