The Shimano Flat Mount Adapter allows you to fit flat-mount disc brake calipers to a standard disc brake mounts frame. This mount is compatible with both 140 mm and 160 mm discs. All you have to do is flip the adapter. Shimano is the world's largest manufacturer of bike components. Today Shimano globally operates three key businesses, with sales offices and factories all over the world. They will continue supplying 'captivating products' to help promote the bicycle and sports fishing cultures Japanese company Shimano is the most popular groupset manufacturer with a range of groupsets at different prices. It's constantly updating the other bike components too, with the newest features debuting first on its top-end technology, Dura-Ace, before eventually filtering down through the range. Their bicycle components division has a wide range of product line-ups such as brakes, pedals, wheels, gears, chain sets etc., and represents 80% of the company's total revenue. Shimano has about 70% of global share in bicycle gears and brakes, and approx. 50% of the overall bicycle components market. Shimano's products are designed to meet customer needs for easy, trouble-free installation with a guaranteed great result every time. Their quality commitment extends to social, ethical and environmental responsibilities and Shimano are proud to be members of all the key industry associations.