I have a Airbourne Carpe Diem that has done many thousands of miles of commuting service with a set of DIY-modified Shimano M515 discs through Ultegra STI's. Power and feel at the lever is fine, but being bodged MTB brakes they need fettling about once a week to keep them running nicely.
Both sets of pads are nearly dead and the rotors are looking tired, so I could buy new parts and carry on as I am or, for about 50% more money, simply get some road specific discs. If I replace them my options seem to be R505, BB5 or BB7. I know the BB7's will be good, but are relatively pricey compared to the other two. A quick google suggests the R505's are a bit 'agricultural' and lack power and feel.
Looking for comments from anyone who has used any of these three options - esp if you've used more than one and compare and contrast.
Ta in advance - BB.
