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post #1 of 19 (permalink) Old 02-13-2019, 10:34 AM Thread Starter
HUD
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Tires

I need to buy tires for my 101 sprint, I bought 155 X 15 for my 101 spider and thought I would try a little wider tire on the sprint.

175x70 tire, anyone running this size? any rub issues? Thoughts?

Thanks guys,
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post #2 of 19 (permalink) Old 02-14-2019, 06:03 AM Thread Starter
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No opinion? anyone....
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post #3 of 19 (permalink) Old 02-14-2019, 07:48 AM
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I think you've made up your mind... IMO. It's your money and your car. I think the silence can be interpreted as resounding indifference and /or the opposite of resounding support for the idea. Stick with the 155's bottom line.
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post #4 of 19 (permalink) Old 02-14-2019, 08:06 AM Thread Starter
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No no, no mind made up yet, just curious. 155's are about $40 dollars less per tire. : )
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post #5 of 19 (permalink) Old 02-14-2019, 08:12 AM Thread Starter
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vredestein makes a sprint classic in the 175x70 so the vintage tire look would be retained. No interest in running a modern looking tire.

from what I'm finding w the vredestine:

175x15:

7" section width
5' tread width
24.7 Dia

155 x 15:
6.2 section width
4.3 tread width
24.8 Dia
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post #6 of 19 (permalink) Old 02-14-2019, 11:09 PM
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Stick with the Vredestein 155 section tyres....they work very well and they maintain the light steering and good handling.

Stuart
'57 Spider Veloce, '57 Lightweight, '60 SZ, '76 2000 Spider. '60 Sprint
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post #7 of 19 (permalink) Old 02-15-2019, 01:08 AM
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I made the mistake of putting 165 Vredesteins on my Sprint & had problems with the front right tyre rubbing on the forward lower edge of the wheelarch on cornering.

I swapped them for 155's (still Vredestein) & have had no problems since ...
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Andy
'59 Giulietta Sprint & '69 1750 Spider Veloce
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post #8 of 19 (permalink) Old 02-15-2019, 02:20 AM
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Quote:
Originally Posted by Lightweight_911 View Post
I made the mistake of putting 165 Vredesteins on my Sprint & had problems with the front right tyre rubbing on the forward lower edge of the wheelarch on cornering.

I swapped them for 155's (still Vredestein) & have had no problems since ...
Iím with lightweight-911 here. I just picked up my 155ís after buying 165ís. They were rubbing on my way home from the shop. Luckily they replaced them.
Iíll fit the 155ís tomorrow.

Unless you can try out a set for minimal expense Iíd stick with standard. What I went through to have them replaced(tyres had to be freighted interstate) is a real headache and expensive.

Plus, for a road car in most situations, what will be the benefit of the wider tyre?

Regards Daniel (101 Spider FYI)
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post #9 of 19 (permalink) Old 02-15-2019, 02:58 AM
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That is precisely the question.....what will be the benefit of the wider tyre?
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Stuart
'57 Spider Veloce, '57 Lightweight, '60 SZ, '76 2000 Spider. '60 Sprint
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post #10 of 19 (permalink) Old 02-15-2019, 06:11 AM Thread Starter
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Thanks guys for the discussion. 155 it is.
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post #11 of 19 (permalink) Old 02-15-2019, 06:30 AM
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It wasn't that long ago we pined for 155's which were unobtanium. Enjoy the luxury of having them now at reasonable prices. Just don't fall for the bunk about riding them at 22 psi because the old tires were constructed for that according to the manuals. Keep them around 30 and you will be very happy with response, ride, and grip.
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post #12 of 19 (permalink) Old 02-15-2019, 07:09 AM
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https://www.lucasclassictires.com/15...-CA67-502p.htm


155HR15 PIRELLI CINTURATO CA67

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post #13 of 19 (permalink) Old 02-15-2019, 11:20 AM
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Coker tire has Michelin X in this size at $40 less per tire.

Cars ruined my life! 😱
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post #14 of 19 (permalink) Old 02-15-2019, 02:11 PM
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Quote:
Originally Posted by alfazagato View Post
That is precisely the question.....what will be the benefit of the wider tyre?
For road use I canít see any advantage of a wider tyre.
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post #15 of 19 (permalink) Old 06-25-2019, 10:34 AM
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I think in the day, Alfa fitted the X to the budget models, but the Cinturato was what they fitted to the more sporting models

https://www.longstonetyres.co.uk/cla...ta.html#page=1

But there is no advantage fitting wider tyres to these cars unless you find yourself locking up your wheels under braking or getting too much wheel spin. If you want to fit wider tyres you should really do alsorts of other adjustments to take advantage of a wider tyre like lowering the car, stiffening the suspention and adding some adverse camber, but all of this goes towards a less pleasant road car.

I would fit 155HR15 Pirelli Cinturato. it has an H speed rating and is very much a sports car tyre. it was developed to take all the advantages of a radial tyre but make them more progressive and suited to sports cars. where the Michelin X is a great tyre, a bit earlier and should last longer, maybe a softer ride, but not so progressive.
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