Specific kit to install the S250 Tool Box onto the (optional) Triumph Expedition Panniers Rails or Trekker Panniers Rails original side-case holder to be combined with the S250 tool box / only for motorcycles equipped with the (optional) original Triumph side-case holder / needs to be mounted on the left-hand side of the motorcycle / by fitting this kit the left pannier holder will be shifted outwards by 30 mm