Jagwire slick inner gear cable campagnolojagwire knows wire thats why its in their name friction in a shift or brake setup results in poor sloppy performance ruining the feel of any bike or system thats why their wire is manufactured to the highest standards in the industry and are tested and checked thoroughly during manufacture an upgrade from basic cables these stainless steel strands are pre stretched then extruded through a die that removes the rough edges resulting in a smooth