Take off the front wheel. Turn the bike upside down. If fork is like mine, the bolt / nut & threads are now exposed. If so, good access for some PB Blaster. Every day for 3 days. Then try to loosen, allen key in 1 hand, holding the brake with the other. If it's still too tight go 3 more days. Pretty sure this will loosen up, Campy Record isn't junky stuff. Don't lose patience and start breaking stuff.
Last edited by grizzly59; 02-26-21 at 06:39 PM.