Brake Shoes - Cartridge type with pads. Shimano Ultegra, 54mm
These are Ultegra 54mm length, aluminum, cartridge brake shoes that have toe-in adjustment built into the shoe. The black pads are alright for wet and dry but when they wear out replace them with the better salmon yoko pad inserts.
Neat itty bitty bumpers on the wheel guide/heat sink fins to prevent rim scraping and scratching when the pads are close to being all worn out.
Perfect upgrade for CX50 cantilever brakes.
Official Shimano name: BR-6700 R55C3