Ohlins TTX40 MkII Universal Motorsport Damper External Reservoir SINGLE - NO SPRINGThe 4 way adjustable TTX40. Winner in Le Mans, Indy Car, touring cars, sports cars and GT racing. Among others. Ever since the introduction, this high end level racing damper has been a winner in top level racing around the globe. The TTX 40 twin tube damper features a 40 mm solid piston and a through rod shaft which eliminates the requirement of an external reservoir. The design is fully pressure balanced with a positive pressure build up throughout