Gear cable liner The indispensible sleeve for changing internally-routed gear cables easily. - Non-friction cable liner improves shifting by cutting out the friction between the points of contact, (e.g. between the bottom bracket routing and the cables). Length 1500mm Ø Intérieur : 2.2mm Ø Extérieur : 3mm Photo for information only Watch our cable changing tutorial (it's in French, but so what !) on https://www.youtube.com/watch?v=xr1n9UvxVCk