4 versions of the saddle Y-frames are available:
P/N 52 51 7 002 164: R51/2 - R68 with 8 mm holes for saddle bearing bolt 52 51 7 002 125.7
P/N 52 51 7 002 165: R51/3 - R68 with 10 mm holes for silent block 52 51 7 002 141
P/N 52 51 7 002 115: R25/2 with 8 mm holes for saddle bearing bolt 52 51 7 002 125.7
P/N 52 51 7 002 116: R25/3 - R27 with 10 mm holes for silent block 52 51 7 002 141
Note the different shape of the tabs:
P/N 52 51 7 002 164 / 165 (R51/2 - R68) P/N 52 51 7 002 115 / 116 (R25/2 - R27)
P/N 52 51 7 002 125.7 - 8 mm bearing bolt P/N 52 51 7 002 141 - 10 mm silent block
