Racetech Adjustable Back Bracket Extension - RTB3115B-EX 997 the RT4100WTHR is 60mm taller

the RT4100WTHR is 60mm taller and 40mm wider

Precision cut from a 20mm thick 6061 aluminum sheet

True Optimal Lap: Patented Garmin technology splices together a driver's best achievable time into a single video based on lines driven if all best lines had been driven on the same lap

Large harness guides and a removable molded base cushion allow a range of drivers of varying heights to fit

All sizes have been rigorously tested to meet FIA 8855-1999 safety and durability regulations

Racetech Adjustable Back Bracket Extension - RTB3115B-EX 997 the RT4100WTHR is 60mm tallerRTB3115B EX: Racetech 5mm aluminium (5083) bracket reach extension for use with the RTB3115B adjustable back bracket. Once in position, two additional holes must be drilled in the extension bracket, and two additional opposing holes will be required in your RTB3115B bracket. Mounting holes should be drilled using engineering consideration. The kit includes the M8 cap screws, washers and flanged nuts required for installation. Maximum additional reach: