These new sizes of aluminum suspension mount alter the roll height of TRF touring car race machines to give a roll center of 4.5mm, which is 0.5mm lower than that provided by 1XD-1F counterparts (Items 54064 - 54074), as well as altering pitch.
Three types are available. In descending order of width: 05G > 05F > 05ECompatible with TRF416-419X chassis machines.