Goodridge V-Twin Universal Oil Lines - 21in. VTOL-021 Universal oil lines are available in various lengths with female chrome swivel fittings, which fit the universal oil adapters to assemble complete V-Twin oil lines Oil lines feature premium stainless steel braided hose with a PTFE liner and the female swivels and adapters are crafted from show quality chrome steel Developed with the professional builder or do-it-yourselfer in mind, this high end, yet affordable product range simplifies installation work and adds great looks to any bike Covered by the exclusive Goodridge Forever Warranty Oil line lengths are determined by measuring the distance between the flares of the female swivel fittings.