The Shimano SP40 Step Down Cable Ferrules are precision-engineered end caps designed to join cables and housings of differing diameters. Commonly used in bike shifting systems, these ferrules ensure smooth cable transitions, especially where step-down sizes are needed — such as connecting a larger outer housing to a smaller frame stop or internal routing port. Built from durable metal and finished in silver, they help maintain optimal cable alignment and minimize friction for consistent shifting performance. Features Original replacement equipment from Shimano Alloy construction Ideal for front or rear derailleur housing stops, especially on internally routed or narrow-entry frame designs. Step-down design ensures a secure transition from larger outer cable housing (5mm) to smaller cable stops or frame fittings Specification Overral Diameter- 4mm Additional Info Country of Origin: JAPAN 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: [email protected] Commodity: Ferrules