Technical Data - Disk Brake — Brakes — Front Wheel Brake

Technical Data - Disk Brake Opel Calibra I

Disc Brake

Disc Brake Dimensions - Front (up to MY '91):

Version	Piston	Brake disc outer	Brake disc	Thickness*	Minimum
	diameter	diameter	thickness (new)	after preci-	thickness
				sion turning
	in mm	in mm	in mm	in mm	in mm
Up to 1.8 ltr. without 4x4	48	236	12,7	10,7	9,7
As of 2.0 ltr. and with 4x4	521)	256	24	22	21

Disc Brake Dimensions - Front (up to MY '92):

Version	Piston	Brake disc outer	Brake disc	Thickness*	Minimum
	diameter	diameter	thickness (new)	after preci-	thickness
				sion turning
	in mm	in mm	in mm	in mm	in mm
14 NV, C 16 NZ, 16 SV	48	236	12,7	10,7	9,7
			202)	182)	172)
17 D, 17 DT,	48	236	12,7	10,7	9,7
18 SV, C 18 NZ		2562)	202)	182)	172)
20 NE, 20 SEH,	52	256	24	22	21
C 20 NE, C 20 XE
all 4x4	54	284	24	22	21

* After this measurement has been reached, new brake linings may only be installed once more.

1) With four wheel drive 54 mm

2) as of 10/91

Surface peak-to-valley height of new brake discs at front and rear: 0.01 mm

Disc Brake Dimensions - Front:

Version	Piston	Brake disc outer	Brake disc	Thickness*	Minimum
	diameter	diameter	thickness (new)	after preci-	thickness
				sion turning
	in mm	in mm	in mm	in mm	in mm
C 16 NZ, C 16 NZ21),	48	236	20	18	17
C 16 SV, X 16 SZ		2561)		18
17 DR, 17 DT	48	256	20	18	17
C 18 SV, C 18 NZ2)	48	256	20	222)	17
	522)		242)		212)
20 NE, C 20 NE,	52	256	24	22	21
C 20 XE, X 20 XEV	543)
C 20 LET, C 25 XE	54	284	24	22	21

* After this measurement has been reached, new brake linings may only be installed once more.

1) Vauxhall only

2) C 18 NZ (AT) only

3) With four wheel drive

Surface peak-to-valley height of new brake discs at front and rear: 0.01 mm

Disc Brake Dimensions - Rear:

Version	Piston	Brake disc outer	Brake disc	Thickness*	Minimum
	diameter	diameter	thickness (new)	after preci-	thickness
				sion turning
	in mm	in mm	in mm	in mm	in mm
20 NE, C 20 NE,	35	260	10	8	7
X 20 XEV, C 20 XE,
C 25 XE, all without 4x4
Vehicles with 4x4	33	270	10	8	7
C 20 LET

Disc Brake Dimensions - Front and Rear:

Uneven	Perm. lateral run-	Perm. lateral run-	Perm. scoring	Thickness of	Perm. remaining
thickness	out of removed	out of installed	depth	new lining	thickness of
(perm.	brake disc	brake disc		with plate	lining with
tolerance)					lining plate
in mm	in mm	in mm	in mm	in mm	in mm
0.01	0.03	0.1	0.4	15	approx. 7

* After this measurement has been reached, new brake linings may only be installed once more.

Surface peak-to-valley height of brake discs, rear: 0.01 mm

Technical Data - Disk Brake Opel Calibra I