Replacement flex disc (guibo) made by Lemforder. 135mm diameter. 12mm bolt. Application and transmission specific! See below.

Applications:
2008+ E82 BMW 128i
5/1986-1991 E30 BMW 325e 325es M3 - Manual Transmission
1987-1991 E30 BMW 325ix - Between Transmission & Transfer Case
1996-1998 E36 BMW 328i 328is 328ic - Manual Transmission only
1999-2005 E46 BMW 323i 323ci 325i 325ci - Automatic & SMG Transmissions only
1999-2005 E46 BMW 328i 328ci 330i 330ci - Manual, Auto, and SMG
2006+ E90 BMW 325i 328i 330i - Manual or Automatic Transmission
2006+ E91 BMW 328i - Manual or Automatic Transmission
2007+ E92 BMW 328i - Manual or Automatic Transmission
2007+ E93 BMW 328 - Manual or Automatic Transmission
1982-1983 E28 BMW 528e - Manual Transmission
5/1986-1988 E28 BMW 528e - Manual Transmission
1982-1988 E28 BMW 533i 535i 535is M5 - Manual Transmission
1991-1995 E34 BMW 525i - Automatic Transmission
1989-6/1992 E34 BMW 525i - Manual Transmission
1993-1995 E34 BMW 530i - Manual or Automatic Transmission
1989-1993 E34 BMW 535i - Manual Transmission
2001-2003 E39 BMW 525i - Automatic Transmission
1997-2003 E39 BMW 528i 530i - Manual or Automatic Transmission
1980-1989 E24 BMW 633csi 635csi M6 - Manual Transmission
2000-2006 E53 BMW X5 3.0i - for Rear Driveshaft
2000-2003 E53 BMW X5 4.4i X5 4.6is - for Rear Driveshaft
2007+ E70 BMW X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive48i - for Rear Driveshaft
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i - Automatic Transmission
1997-2002 Z3 BMW Z3 2.8 Z3 3.0i - Manual or Automatic Transmission
2003-2008 Z4 BMW Z4 2.5i - Automatic or SMG Transmission
2003-2008 Z4 BMW Z4 3.0i Z4 3.0si