The Grand Cru long reach (47-57) caliper brakes are super stiff, probably the stiffest long reach brakes ever made. In testing we found these to outperform every other long reach brake and many short reach racing brakes that cost twice as much. The dual pivot design offers superb modulation and power, very important on a steep mountain descent. The pivots are very smooth. There is clearance for 45mm fenders.
They are made in a small shop in Taiwan run by a former bike racer and engineer. They include brake shoes come with good quality pads and take standard Shimano-type replacement pads.
Price is per pair. Wrenches and a carbon fork mounting nut are included. 355gms per pair including shoes, pads, nuts...
By the way, these brakes currently sell for over $250 in Japan.