Pair of front brake discs
To suit, D models from 9/65> and all SM models.
Very good quality.
To avaoid shuddery brakes after a few thousand miles, it is imperative that the correct procedure for fitting these is followed. This can be found in the original workshop manual here. The maximum allowable run-out is 0.15mm at the outer edge and if greater than this, unbolt the disc, turn 1/3 of a turn and try again.