Road Bike Disc Mount Adapter Function Converts a 140 mm rotor to 160 mm on road bikes to enable larger rotor use and improved braking performance. Material Aluminum alloy for durability and reliable longterm use in road cycling. Mounting hole distance Front: 34/70 mm (F140) Rear: 34 mm (R160) The specified hole spacings ensure proper installation and compatibility with various road bike models. Mount style Flat mount style for a sleek, integrated look that aligns with the frame and fork. Benefits and performance Enables larger 160 mm rotors on frames and calipers designed for 140 mm, providing stronger braking power and better modulation while maintaining a clean installation. Compatibility and usage Designed for road bike disc brake systems requiring conversion from 140 mm to 160 mm; suitable for front and rear installation according to the mounting distance specifications. Practical use scenarios 1) Upgrading an older road bike with 140 mm rotors to 160 mm rotors to improve braking on long or steep descents. 2) Retrofitting a bike to enhance braking performance in wet or challenging riding conditions without changing calipers. 3) Installing on a road bike where the frame and brake setup support a flat mount adapter to accommodate a larger rotor size. Notes This description reflects the product as a 140 mm to 160 mm rotor conversion adapter for road bikes with flat mount styling and aluminum alloy construction.