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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Nov 2018
Posts: 6,671 Likes: 438
Talk Morgan Sage
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OP
Talk Morgan Sage
Joined: Nov 2018
Posts: 6,671 Likes: 438 |
Anyone had any experience using them on steel rims?
I reckon there's about 30mm+ space between tyre wall and wing so plenty of space.
Could always go for wider wheels/tyres, but increasing the track slightly would make it easier to straddle all the speed bumps round here!
"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10
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Joined: May 2014
Posts: 131
L - Learner Plates On
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L - Learner Plates On
Joined: May 2014
Posts: 131 |
If you straddle the speed humps in my area you hit the gearbox cross member . Be careful.
Tony
Claret Red +4
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Joined: Sep 2011
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Member of the Inner Circle
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Member of the Inner Circle
Joined: Sep 2011
Posts: 14,748 Likes: 158 |
If you straddle the speed humps in my area you hit the gearbox cross member . Be careful. The Plus 4 has the lowest profile tyres of the whole range of "standard" trad cars. Fit 195/65 R15 tyres and you raise the ground clearance by 10mm. Depending on the year model you may be suffering from the well known rear spring sag too.
Peter ![[Linked Image]](http://bradley.it/public_images/drive.jpg)
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Joined: Dec 2008
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Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
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I used narrow spacers years ago. They really need locating centrally on the hubs and may need extended studs.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Nov 2018
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Talk Morgan Sage
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Talk Morgan Sage
Joined: Nov 2018
Posts: 6,671 Likes: 438 |
I used narrow spacers years ago. They really need locating centrally on the hubs and may need extended studs. I'm thinking of either 5-10mm spacers and see how much meat is left on the studs, or going for the much larger hubcentric style which bolt onto the hubs and then have their own studs - these are about 25-30mm usually (used these on my Land Rovers). I think I've read the PCD is 4x130 - does that sound right?
"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10
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Joined: Dec 2008
Posts: 22,366 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,366 Likes: 354 |
Someone will know. I've only had wires on Morgans!
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Dec 2011
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Dec 2011
Posts: 1,943 |
I use wheel spacers on My +8 Bitsa with disk wheels. When I converted to Wilwood brakes and rotor the caliper interfered with the wheel. The amount of thread loss on the studs are a concern. But I really do not know how many threads are too few. However I am careful to use a torque wrench to insure they are set properly.
"I think I've read the PCD is 4x130 - does that sound right?" Do not know what "PCD" is. I can guess it is 4 studs X 130mm long.
Button
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Joined: Apr 2014
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Talk Morgan Sage
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Talk Morgan Sage
Joined: Apr 2014
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Do not know what "PCD" is. I can guess it is 4 studs X 130mm long. Pitch Circle Diameter. Diameter of the circle of the centre line of the bolts.
Best Regards
Lang may yer lum reek
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Joined: Apr 2017
Posts: 1,799 Likes: 4
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Apr 2017
Posts: 1,799 Likes: 4 |
4/130 is a fairly common wheel attachment.
PCD means pitch circle diameter.
If you drew an imaginary circle around the centre of the studs or wheel holes that circle is called the pitch circle and it's diameter is the pitch circle diameter or PCD.
Many German cars for example use a 5/112 wheel which means 5 studs or bolts on a 112mm PCD
Doh, Bob beat me to it
Last edited by IvorMog; 06/01/19 04:53 PM.
Bob
2009 Black Roadster
1999 4/4 2 litre Zetec
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Joined: Jan 2010
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Jan 2010
Posts: 1,915 Likes: 95 |
....
The Plus 4 has the lowest profile tyres of the whole range of "standard" trad cars. Fit 195/65 R15 tyres and you raise the ground clearance by 10mm.
.... - My Plus 4 Sport has 205/65R15 tyres. No grounding problems, but luckily there aren't a huge number of road humps around here!
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