Put some External nut old Campag Brakes on my Recessed nut built, RB1,
just put a flatwasher under the nuts .. front and rear brake..
but wheel change size was same.
Radius of a 622/700c wheel is 4mm less than a 630/27".
measure the slot in the brake arm.
Last edited by fietsbob; 02-26-12 at 03:18 PM.