The Shimano Sora R300 Brake Callipe Rear Super SLR dual pivot design keeps operating friction to a minimum, improving braking performance Shimano Sora R300 Brake Callipe Rear Calliper New super linear response system Dual-pivot BR-R3000 callipers with quick release cable levers make getting wheels in and out a breeze 49 mm drop Includes 10.5 mm sunken nut With R50T5 brake shoes
