My friend just replaced his five year old campy record rear brake with new record. Now every leaf, patch of dirt and grain of sand gets caught between his tyre and brake. Check out the very limited clearance he now has. FYI, this is a conti GP 4000 25c tyre, so maybe that is contributing to the problem, but it’s the same tyre he was riding, prior to the switch, without issue. I told him to consider buying an older version of record to solve this problem. What do you think?