Transfil is a quiet giant of a company. Suppliers of control cables to the French car industry, Transfil also produces extremely high quality inner wires and outer cables for bicycles The original gear or brake K.ble sets cover Shimano, Campagnolo and Sram systems. There are 4 upgrade kits, MTB or road compatible: Flying Snake has a watertight carbon/Kevlar outer casing which is stiffer, ideally suited to disc brakes. It is 30% lighter than a standard cable set. Mud Lovers have a sealed watertight jacket and UV protected outer ideal for MTBs.