Quick tyre question

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marc

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Any recommendations on tyre size for the old csl running on 14 inch Alpinas ? I think, according to the unused original spare tyre it was fitted with 195x70 x14 inch tyres when new and its currently on 205/70 x14 tyres that have hardened over winter and started to crack.
Its its first run this year, got it off the blocks, checked the oil, water and all the fluids and all was fine. Decided to give it a quick oil change and a new battery as the last one was on the way out and it started first time. Done around 50 miles in it today with out problem and its so good to drive after the daily slush mobile.
Going away in it for a week end and need 4 new tyres and really need to get them before I go and the only ones I can get local are 205/60 x14 would they be OK ? If you go from 195x70 to 205`s the aspect ratio should be drop to 65 ? if that's the case the 205x70`s have to higher side wall and the 205x60`s have to lower aspect ratio. What should I go for ?
Marc
 
14 inch tires

In order to match the OD's and consequently make your speedo correct, the exact dimensions would be-

227 60
210 65
195 70

Any deviation from these would affect indicated speed accordingly.

With that said, I think 225 60's or 215 60's if necessary would work well. I'm not sure if the fenders would have to be rolled with the 225's...Anybody??
 
227 60
Click to expand...

Ed, your local shop sells some interesting tire sizes... :P

215/60 or 215/65's's used to be the wide 14" tire of choice for koopes. They're a little harder to find now, as the average wheel size has grown to 16" and beyond. I don't know about availability in your locale, but on this side of the pond, Tire Rack shows BF Goodrich, Yokohama, Firestone and Kumho options. None are exactly high-performance tires by today's standards, but a set of BFG Radial T/A's or Yoko Avid ST's are probably head and shoulders above the ability of a 1970's Michelin X.

205/60-14's are a little shorter than ideal, but the effect on your speedo is still only about 3mph. Given the marginal accuracy of most e9 speedo's, that's not even a measurable error... There were 205/70-14's on 7" wide wheels on my car when I bought it, they rubbed the front fenders on turns and impacts.

We have Yoko Avid ST's on my wife's CR-V, they're pretty good all-rounders.
I'm still running 185/70-14 Dunlops on my e9.
 
I am putting 205/55R14 front and 225/50R14 on the back with 7jx14 alpine wheels. what do you think about this. I have also lowered the car around 20mm.
 
saman said:
I am putting 205/55R14 front and 225/50R14 on the back with 7jx14 alpine wheels. what do you think about this. I have also lowered the car around 20mm.
Click to expand...

I have 225 x 60 on my 14" Alpina wheels. Needed to roll the front fenders.
The Michelin Pilots have timed out and am looking to replace with BF Goodrich with the white letters on the inside.

FYI - Using my GPS at 70 mph = speedometer - no discernible difference.
I would be very interested in learning the results of staggering the tires.

PS: look at the tire size comparison charts and you will see that the 225 x 55 will give more speedo error.
 
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