Hi guys,

I was just wondering whether fitting 195/50/15 tyres instead off the 205/50/15 tyres would make any difference in the accuracy off the speedo?
I think the 205/50/15 is similar to the size that was originally on the car.
Would it cause the speed to be out?
I've been looking at a full set off new tyres and 195's are just so much cheaper, with alot more choice.

Thanks, Asif

 

Take a look at this and see the difference TYRESAVE: Tyre Size Calculator I used to use the miata one but that's asking for a java update and I can't be bothered to do that now.

 

Tire size calculator

Tire size calculator

Should put your speed out by -1mph, so when actually doing 60 the speedo will read 59. Not enough to get you in serious trouble. Move up on the profile to 55's and it's the other way 'round.

 

Why do people want to skimp on tyres? they are one of the most important part of the car, stick to the manufacturers recommendation and stay on the road rather than have less traction and end up in a hedge/ditch/wall.

Off the internet:-


Nexen N2000
Customer Rating:
195/50 R16 V (83)
£53.54


Kumho KH31
195/50 R16 V (88)
Reinforced
£62.71


Falken Ziex ZE-912
Customer Rating:
195/50 R16 V (84)
£68.49


Toyo Proxes T1-R
Customer Rating:
195/50 R16 V (84)
£89.17


Proper size:-

Nexen N3000
Customer Rating:
205/50 R16 W (87)
£62.70


Kumho KU31
Customer Rating:
205/50 R16 W (87)
£65.00


Falken FK-452
Customer Rating:
205/50 R16 W (87)
£69.21


Toyo Proxes T1-R
Customer Rating:
205/50 R16 W (87)
£76.71


Avon ZV5
205/50 R16 W (87)
£78.40


Kleber HYDRAXER
Customer Rating:
205/50 R16 W (87)
£92.84


Avon ZZ3
205/50 R16 W (87)
£92.96


Courier (by Pirelli) K Drive
205/50 R16 W (87)
£94.14


Cooper Zeon 2XS
205/50 R16 W (87)
£97.46


Cooper Zeon CS6
205/50 R16 W (87)
£97.46

Not sure where you find the 195's are cheaper unless you drop the speed rating (not a good idea).
Both the above are mid range tyres.

I point to the cost of the Toyo's, over 10 quid difference between the wrong size and the correct size (the 205's are cheaper), plus you also have the speed rating and load rating to consider (both are higher on the 205's).

Tony

 

If you read my post you would see that I am running on 15" wheels
4 new 195/50/15 t1r's are just over 100 pounds from camskill, where as 4 new 205/50/15 t1r's are just over 250 pounds fro camskill
To me that is a huge difference in price! I was just asking if I went for the 195's would the speedo but out?

Thanks for the advice guys, I have a go on the calculator and see how much its out by. If its 1mph then I'm not to fussed tbh.

Thanks

 

If your running 15 inch wheels on an impreza they should be 60 section tyres. 50`s are for 16 inch wheels. Think tony is just pointing out the correct size assuming that you have a subaru.

 

weren't they 195/55? lol

 

Yes its for a subaru... I was told that if I was running 15's then they had to be 205/50

 

Caution. From first hand experience Khumo = POO.

 

What year/model is it? and does it have the 2 pot set up or the 4 pot set up?

Tony

 

Its a 1995 Wrx with 2 pots up front I'm pretty sure it came out off the factory on 15's but I could be wrong.
It came with 17's when I got the car but first thing I did was change to 15's as It feels so much better IMO. The accelaration is alot better and the car feels alot more agile.

Asif

 

It looks better but your tyre size is wrong so your speedo is out revert back to 16 or 17 inch wheels

Tony

 

Poo!!! Hope its not out by much Do you know what tyre size it came out off the factory with? As the 17's that were on it were after market...

Cheers, Asif

 

Yes the 17's will be after market, you could look for some subaru 16's, probably a fair few going on ebay

Tony

 

I've got some in my garage but I prefer the 15's I'll have to see how far out my speedo is then take it from there...

Thanks for your help!

Cheers, Asif

 

The early wrx's did have 15's as std