The Shimano BR-R517 Post Mount Mechanical Disc Brake is a reliable and affordable option for upgrading to disc brakes on road or cyclocross bikes. It offers powerful and consistent braking performance in a lightweight and durable package Features Compact looking 20% Low profile design saves the mechanical disc brake from damage CX75/R515 vs R505 Reliable Performance Specifications Type- Brake Caliper Brakepad Compound- Resin Recommended Rotor- 140mm | 160mm Mount Type- Post Mount Actuation- Shimano Mineral Oil Brake Lever Length- NA Shifting System- NA Number of Pistons- 2 Pistons Additional Info Country of Origin: China Imported By: Shimano South Asia Pvt Ltd. , 19 , (Ground Floor) Kumara Krupa Road , Bangalore – 560 001 , Karnataka , India. Net Quantity: 1N Customer Care Address: 291, 10 Main, 5 Block, Jayanagar, Bangalore - 560041. Ph: (080)47183232, Email: support@bumsonthesaddle.com Commodity: Mechanical Disc Brakes