Slimmest tyre for a Dunlop Composite?

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Slimmest tyre for a Dunlop Composite?

Post by Rev Light » Mon Apr 29, 2019 12:22 pm

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


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Slimest tyre for a Dunlop Composit?

Post by rebel alliance » Mon Apr 29, 2019 12:30 pm

175,s will fit, i would not go any slimmer



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Slimest tyre for a Dunlop Composit?

Post by roymck » Mon Apr 29, 2019 12:35 pm

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 ?



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Slimest tyre for a Dunlop Composit?

Post by halfpenny » Mon Apr 29, 2019 12:53 pm

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



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Slimmest tyre for a Dunlop Composite?

Post by Coupe Racing » Mon Apr 29, 2019 12:57 pm

Surely as a minimum you should fit what the manufacturer specifies


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Slimmest tyre for a Dunlop Composite?

Post by scimjim » Mon Apr 29, 2019 7:28 pm

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


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Slimmest tyre for a Dunlop Composite?

Post by peter freeman » Mon Apr 29, 2019 8:29 pm

Fit EPAS - cheaper than buying a new set of tyres



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Slimmest tyre for a Dunlop Composite?

Post by Roger Pennington » Mon Apr 29, 2019 8:55 pm

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)


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Slimmest tyre for a Dunlop Composite?

Post by Rev Light » Mon Apr 29, 2019 10:14 pm

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.

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Slimmest tyre for a Dunlop Composite?

Post by scimjim » Mon Apr 29, 2019 10:34 pm

I think the rainsport 3 comes in 175 or 185/70 x 14?


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SECURE DRY STORAGE FOR YOUR SCIMITAR

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
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Slimmest tyre for a Dunlop Composite?

Post by philhoward » Tue Apr 30, 2019 5:46 am

RainExpert 3 you can - but only in T speed rating (not H).


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Slimmest tyre for a Dunlop Composite?

Post by Rev Light » Tue Apr 30, 2019 7:27 am

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.


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Slimmest tyre for a Dunlop Composite?

Post by scimjim » Tue Apr 30, 2019 8:08 am

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.


Jim King

SECURE DRY STORAGE FOR YOUR SCIMITAR

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), 1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS

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Slimmest tyre for a Dunlop Composite?

Post by philhoward » Tue Apr 30, 2019 8:19 am

I couldn't find them?
Uniroyal.JPG
Uniroyal.JPG (76.41 KiB) Viewed 523 times


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Slimmest tyre for a Dunlop Composite?

Post by scimjim » Tue Apr 30, 2019 8:30 am

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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C24419E1-6B28-4275-9DDF-289839004173.png (164.27 KiB) Viewed 521 times
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3BB3EF8B-A167-4731-B097-93EA2EA29A18.png (135.26 KiB) Viewed 519 times


Jim King

SECURE DRY STORAGE FOR YOUR SCIMITAR

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), 1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS

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