Click here to return to the home page.
Classic Morgans
Who's Online Now
0 members (), 135 guests, and 62 robots.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
+8Rich 64
Newest Members
Carbuilder, Scot_SJI, Jimmers, Breen60, Davidmog
9,597 Registered Users
Newest Topics
New Morgan owner - 1989 Plus 4
by Carbuilder - 05/09/26 05:21 PM
Oil level reading
by moggin - 05/09/26 01:58 AM
Wanted - exhaust manifold and down pipe
by Tom Sayles - 04/09/26 03:33 PM
Henry Catchpole on the SS 400 vid
by Luddite - 04/09/26 02:24 PM
Cars and boats vid
by Luddite - 04/09/26 09:04 AM
Boats alongsidish last night
by +8Rich - 03/09/26 11:57 PM
Steering bearings
by Ricosan - 03/09/26 06:30 PM
Latest Photos
1989 Morgan Plus 4 in Ontario, Canada
1989 Morgan Plus 4 in Ontario, Canada
by Carbuilder, September 5
First anniversary of Plus 4
First anniversary of Plus 4
by Strathaven, September 5
Wales
Wales
by Joske Vermeule, September 1
Engine/Gearbox Separator CX Models
Engine/Gearbox Separator CX Models
by number thirteen, August 30
tow bar
tow bar
by G Walker, August 24
Forum Statistics
Forums39
Topics49,880
Posts837,761
Members9,597
Most Online1,063
Jun 14th, 2026
Today's Birthdays
Alberto, Alexanderr, CooperMan
Previous Thread
Next Thread
Print Thread
Joined: Nov 2013
Posts: 109
RogerQ Offline OP
L - Learner Plates On
OP Offline
L - Learner Plates On
Joined: Nov 2013
Posts: 109
So I now have taken delivery of some ex Baby Doll centre lock Minilites which I’m now looking to fit to the car. I’m aware of the potential interference issue between the inner rim and the front suspension etc. and Cain from Wolf Performance is going to check that out, plus Peter from SSL has been really helpful and provided some advise on this issue.

My next dilemma is what tyre to fit! Currently I have 185/70 R15 Avon CR6zz’s fitted to 15 x 6 wire wheels and transferring these to a 7” rim is physically possible, however it is outside the Avon recommendations, which is rim size 4.5 to 6 inches. Does anyone know what are the legal/safety standpoint is in relation to this?

Finally, if I do have to change to new tyres, what would people recommend? The tyres originally specified for the Plus 4 Supersport was I believe 205/65 R15 Avon ZV5’s?


Morgan Plus 4 - 2.5 Duratec
Husqvarna 701 Enduro
1972 750 Norton Commando
4 bikes
2 tandems
Joined: Dec 2007
Posts: 536
P
Talk Morgan Regular
Offline
Talk Morgan Regular
P
Joined: Dec 2007
Posts: 536
My twopence worth on tyre size is don't do it if it's outside the Avon recommendation. You might only find out the legal situation were you unlucky enough to have a serious accident involving insurance experts. My view on insurers these days is that they stop at nothing to avoid paying out!

Cheers


Philip

1985 Plus 8 four seater
Malone F1000 - track car
Joined: Oct 2019
Posts: 5,588
Likes: 603
Charter Member
Offline
Charter Member
Joined: Oct 2019
Posts: 5,588
Likes: 603
The racing rule of thumb is to use a rim 1" wider than the tread width ..... however for road use I'd go along with Philippo ..... you'd probably have been fine a while ago, but since this stupid 'stance' craze the police and insurance companies are very sensitised to 'stretched' tyres


K

Joined: Feb 2016
Posts: 8,684
Likes: 414
Needs to Get Out More!
Offline
Needs to Get Out More!
Joined: Feb 2016
Posts: 8,684
Likes: 414
Good news is that 205/65 R15 tyres give a similar circumference, just 1.2% larger than your 185's. Note ZV7 has replaced ZV5 and factory fit on current cars.


Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
Joined: Nov 2013
Posts: 109
RogerQ Offline OP
L - Learner Plates On
OP Offline
L - Learner Plates On
Joined: Nov 2013
Posts: 109
Yes, the diameter is important as with the P4 standard set up I had issues with local sleeping policemen!

My local tyre centre isn't too keen on Avon's, so also looking at alternatives. Michelin Cross Climate, a 4 seasons tyre is suppposed to provide good grip in all conditions and the compound is very sticky... might be worth considering. There was some discussion on these last year.


Morgan Plus 4 - 2.5 Duratec
Husqvarna 701 Enduro
1972 750 Norton Commando
4 bikes
2 tandems
Joined: Mar 2011
Posts: 831
Likes: 23
S
Talk Morgan Regular
Offline
Talk Morgan Regular
S
Joined: Mar 2011
Posts: 831
Likes: 23
I have Toyo Proxes CF2 on my +8 they have been discussed before on this website. Currently available at a really good price from Demon Tweeks.


1980 +8 Blue
And a few others
----------------
Stephen

Moderated by  TalkMorgan 

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5