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Slimmest tyre for a Dunlop Composite?

Posted: Mon Apr 29, 2019 12:22 pm
by Rev Light
As I have an SE5a:

1. I do not have power steering
2. I do not, and am unlikely ever to, take it on the track.
3. My wife has expressed an interest on having a drive.... : (

I am wondering if I can take advantage of the slimmer wheel size on my Dunlop Composites (I am currently running on a set of Wolfies) to fit a less wide tyre at reasonable cost?

Cheers

Steve

Slimest tyre for a Dunlop Composit?

Posted: Mon Apr 29, 2019 12:30 pm
by rebel alliance
175,s will fit, i would not go any slimmer

Slimest tyre for a Dunlop Composit?

Posted: Mon Apr 29, 2019 12:35 pm
by roymck
rebel alliance wrote:
Mon Apr 29, 2019 12:30 pm
175,s will fit, i would not go any slimmer
They might fit but would they be legal in the event of a accident ?

Slimest tyre for a Dunlop Composit?

Posted: Mon Apr 29, 2019 12:53 pm
by halfpenny
Bear in mind that an old tyre will generally give heavier steering than an new tyre of the same type, simply because the side walls become soft. Also new tyres of modern construction can give lighter steering, as I found on my fifties classic where new Michelin radials are in fact lighter than the old Avon crossplys. I have 195 vredesteins on my 5a Scim Dunlops, and do not consider the steering heavy at low speed

Slimmest tyre for a Dunlop Composite?

Posted: Mon Apr 29, 2019 12:57 pm
by Coupe Racing
Surely as a minimum you should fit what the manufacturer specifies

Slimmest tyre for a Dunlop Composite?

Posted: Mon Apr 29, 2019 7:28 pm
by scimjim
Recently posted in another thread - the Dunlop is 5.5” wide
scimjim wrote:
Fri Mar 22, 2019 9:26 am
There’s loads of info online and decent tyre manufacturers will recommend rim width for their tyres. Here’s the first one that came up (ignore the incorrect spelling of tyre :D )

Rim width (inch)......Min. tire width (mm).......Ideal tire width (mm).........Max. tire width (mm)
5,0...................................155.................165 or 175......................185
5,5................................... 165.................175 or 185......................195
6,0................................... 175.................185 or 195......................205
6,5................................... 185.................195 or 205......................215
7,0................................... 195.................205 or 215......................225
7,5................................... 205.................215 or 225......................235
8,0................................... 215.................225 or 235......................245
8,5................................... 225.................235 or 245......................255
9,0................................... 235.................245 or 255......................265
9,5................................... 245.................255 or 265......................275
10,0...................................255.................265 or 275......................285
10,5...................................265.................275 or 285......................295
11,0...................................275.................285 or 295......................305
11,5...................................285.................295 or 305......................315
12,0...................................295.................305 or 315......................325
12,5...................................305.................315 or 325......................335

Slimmest tyre for a Dunlop Composite?

Posted: Mon Apr 29, 2019 8:29 pm
by peter freeman
Fit EPAS - cheaper than buying a new set of tyres

Slimmest tyre for a Dunlop Composite?

Posted: Mon Apr 29, 2019 8:55 pm
by Roger Pennington
Worth bearing in mind that the tyre profile is a percentage, so if you are currently running (say) 195/70x14 and change to 165/70x14, then the diameter of your tyres will decrease - by 42mm in fact. That's 21mm off your front ground clearance, and if you fitted them at the rear, then that would lower the gearing a bit and give you a 7% speedo error (see Will they fit? website)

Slimmest tyre for a Dunlop Composite?

Posted: Mon Apr 29, 2019 10:14 pm
by Rev Light
Well, the plan is, that when I have worn out the tyres on my Wolfie's, I would change the wheels back to Dunlop, as I prefer the look of them.

I have to bear in mind the cost, so I need a more commonly available size.

Cheers

Steve

Slimmest tyre for a Dunlop Composite?

Posted: Mon Apr 29, 2019 10:34 pm
by scimjim
I think the rainsport 3 comes in 175 or 185/70 x 14?

Slimmest tyre for a Dunlop Composite?

Posted: Tue Apr 30, 2019 5:46 am
by philhoward
RainExpert 3 you can - but only in T speed rating (not H).

Slimmest tyre for a Dunlop Composite?

Posted: Tue Apr 30, 2019 7:27 am
by Rev Light
The current tyres on my Wolfies are only T rated i.e. 185/70/R14 T cheapies. Fitted by a previous owner. They have actually not been bad tyres, being black and round, but it would seem that they might make the speedo under read.

Slimmest tyre for a Dunlop Composite?

Posted: Tue Apr 30, 2019 8:08 am
by scimjim
philhoward wrote:
Tue Apr 30, 2019 5:46 am
RainExpert 3 you can - but only in T speed rating (not H).
and the rainsport according to their website.

Slimmest tyre for a Dunlop Composite?

Posted: Tue Apr 30, 2019 8:19 am
by philhoward
I couldn't find them?
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Slimmest tyre for a Dunlop Composite?

Posted: Tue Apr 30, 2019 8:30 am
by scimjim
The website isn’t very good on the iPad - it puts the selected tyre size at the top but there’s a message at the bottom (hidden by the keyboard) that says they’re not available in your selected size :D
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