That's the thing about biking, if someone from Manchester asked where do you go for a 'car drive meet', it'd be a right arse organising. But on a bike, it's a half hour meet.
I meet up with riders from my site (say no more) who are from all over the place - Derbyshire, Newcastle, Hull etc.
Plus, meet halfway between Leeds and Manc and you have some right routes and roads to play around on.