Don't know about the 2012 R3, but I have a set for my 2014 R3 and they have plenty of clearance.
Im currently replacing my HED C2 rim with the same model. But I'm debating if I should replace it with the Belgium + rim? Right now is the best time to do it if I were to pull the trigger. But, is there a larger benefit that would befit the extra cost?
especially for changing out my front rim which is in great shape?