Jagwire Racer X-Long This Racer cable kit is made for the new breed of cyclocross bikes with disc brakes; for touring bikes running continuous housing, or any other longer-than-usual build Kevlar reinforced housing makes it easy to upgrade the line to mechanical disc brakes with compressionless housing Since this housing will see the dirt, XL kits feature the semi-seal system found in the MTB-specific Ripcord kits Derailleur housing is construction: Linear Steel Strand w/ L3 liner Brake housing construction: Kevlar reinforced w/ L3 Liner SRAM/Shimano compatible Cable Lengths: 2300mm derailleur; 1350mm front brake; 2750mm rear brake Teflon Coated Slick Stainless Cables Housing Lengths: 2500mm derailleur; 3000mm brake