As one of the few manufacturers who does so, NG Brakes provides a KBA (Federal Motor Transport Authority - Germany) certificate with all brake discs, so they may be used on public roads. KBA (Federal Motor Transport Authority - Germany) certificate is supplied with each disc. The OEM version is completely equivalent to the original brake disc dimensions. However, the design may vary on some models. Street legal: Yes. Outer diameter: 220mm. Internal diameter. Mounting: 115mm. Thickness: 4.0mm. Bolt holes: 6. Bolt hole diameter: 6.5mm. Type: Standard vehicle fitment for brake disc NG422 HRD GS 125 / MC 125 1994-1996 (rear) GS 250 / 250 MC 1994-1996 (rear) TM E 125 / GS MC 125, 125 / 125 MX / XC 125 1990-1992 (back) before MX 503 EN (rear) 2000-2002 YAMAHA DT 125 / DT 125 R 1988-2007 (rear) TDR 125 (Italian model) 1989-19 99 (rear) TDR 125 / TDR 125 Japanese model 1993-2004 (rear) WR 125 1989-1990 (rear) WR 125 1991-1992 (rear) WR 125 1993-1997 (rear) WR 125 X / WR 125 X SM 2009-2016 (rear) YZ 125 1986-1987 (rear) YZ 125 1988-1989 (rear) YZ 125 1990-1997 (rear) DT 200 1989 (rear) WR 200 1 992-2005 (rear) TT 250 R 1993-2003 (rear) WR 250 1990-1997 (rear) YZ 250 2T 1985-1988 (rear) YZ 250 2T 1989-1991 (rear) YZ 250 2T 1992-1997 (rear) YZ 360 1989 (rear) YZ 360 rally 1990-1993 (rear) WR 400 F 1998-2000 (rear) YZ 400 F 4T 1998-2000 (rear) WR 500 Z 1992-1993 (rear) TT 600 E 1993-2001 (rear) TT 600 R (rear) 1998-2007 TT 600 S 1993-2001 (rear)