What is the standard lug pattern for the Rover 400?

The Rover 400 typically uses a 4-lug pattern with a 100mm pitch circle diameter (4x100).

Why is wheel offset (ET) important for Rover 400 fitment?

Wheel offset (ET) affects how the wheel sits relative to the suspension and body, impacting clearance, handling, and vehicle stability.

How does center bore size affect wheel compatibility on a Rover 400?

The center bore must match the vehicle hub diameter to ensure proper wheel centering and avoid vibrations.

Rover 400 Wheel Lug Pattern, Offset ET & Center Bore Reference

The Rover 400 wheel lug pattern is a critical specification for proper wheel fitment and safety. Typically, it is defined by the lug count and pitch circle diameter (PCD) measured in millimeters. Alongside this, the wheel offset (ET) and center bore dimensions are essential to ensure hub compatibility and correct wheel positioning.\n\nRover 400 models feature year-specific wheel fitment data, including variations in rim diameters and widths. These factors affect tire compatibility and vehicle handling. Our detailed catalog provides a year-sorted reference of wheel lug patterns, offsets, and center bores to assist in selecting the right wheels or tires.\n\nUnderstanding these technical details helps avoid issues such as improper wheel mounting, clearance problems, or drivetrain stress. Whether upgrading rims or replacing tires, consult this Rover 400 reference to ensure precise compatibility and maintain optimal vehicle performance.

Year

Make / model / trim	Year	Tire	Rim width (in)	Rim diam. (in)	Bolt pattern	Offset ET	Bore DIA	Mounting
Rover 400 414 Si	2000	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 416 Si	2000	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 D	2000	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Di	2000	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Si Lux	2000	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 414	1999	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 414 Si	1999	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 416 Si	1999	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 D	1999	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Di	1999	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Si Lux	1999	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 414	1998	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 414 Si	1998	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 416 Si	1998	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 D	1998	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Di	1998	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Si Lux	1998	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 414	1997	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 414 Si	1997	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 416 Si	1997	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 D	1997	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Di	1997	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Si Lux	1997	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 414	1996	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 414 Si	1996	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 416 Si	1996	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 D	1996	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Di	1996	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Si Lux	1996	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 414 Si	1995	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 416 Si	1995	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 D	1995	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Di	1995	185/65R14	5.5	14	4×100	45	56.1	M12*1,5
Rover 400 420 Si Lux	1995	185/65R14	5.5	14	4×100	45	56.1	M12*1,5

FAQ

What is the standard lug pattern for the Rover 400?: The Rover 400 typically uses a 4-lug pattern with a 100mm pitch circle diameter (4x100).
Why is wheel offset (ET) important for Rover 400 fitment?: Wheel offset (ET) affects how the wheel sits relative to the suspension and body, impacting clearance, handling, and vehicle stability.
How does center bore size affect wheel compatibility on a Rover 400?: The center bore must match the vehicle hub diameter to ensure proper wheel centering and avoid vibrations.

Tire size calculatorShow

Compare two tire sizes — diameter, speedometer error, and clearance change.

WidthHeightRadius

inch

	Size 1	Size 2	Diff	Diff(%)
Diameter	25.0"	25.4"	0.5"	1.89%
Width	7.7"	8.5"	0.8"	10.26%
Circumference	78.4"	79.9"	1.5"	1.86%
Profile height	5.0"	4.2"	-0.7"	-15.08%
Turnover per mile	807	793	14	-1.73%
Clearance	-	-	+0.2"	-

25.0"

7.7"

25.5"

8.5"

15"

5.0"

17"

4.2"

Speedometer Error

(First wheel OEM size)

Reading	20 mph	30 mph	40 mph	50 mph	60 mph	70 mph	80 mph	90 mph
Actual	20.4	30.5	40.7	50.9	61.1	71.2	81.4	91.6