Tyres

[billyboys2008]

hello all just a quick question i have ford galaxy 1995 n reg i have 4 tyres 195/65/r15

 

i have been gave 4 good tyres but they are 205/55 r16 can i put them on my car and will they be ok heard a few people said could affect my speedo?

 

thanks

[edatelder]

Try this tyre size convertor old/new tyres.

Your change should be fine as the percentage is minimal. I think that you have to change the wheels (rims) as well, not just the bigger tyres on the old, small rims.

Edited March 21, 2011 by edatelder

[chucks4x4]

Your old tyres have a rolling circumference of 1992mm the 205's circumference will be 1986mm so your speedo would read 0.3% higher (less distance per revolution) or bu""er all. As has been said you will have to change the wheels for 16 inch diameter ones from the 15 inch you have.

As a way of explanation Tyre sizes are denoted by 195/65/15 = 195mm tread width/65% of 195mm width gives sidewall height(Aspect ratio need to x2 when calculating diameter)/15 inch wheel diameter.

[billyboys2008]

thanks for the reply folks so as long as i put the new rims on aswell they should roadworthy ect thanks alot does it make the drive any better with bigger tyres?

[chucks4x4]

thanks for the reply folks so as long as i put the new rims on aswell they should roadworthy ect thanks alot does it make the drive any better with bigger tyres?

Road performance depends on the tyre compound ie. Softer tyre better road holding greater tyre wear, harder tyre lower tyre wear.

For tyres of similar compounds. Wider tyres give a larger ground contact patch therefore generally better road holding but have a greater rolling friction therefore slightly higher fuel consumption.

Using larger diameter rims means the use of lower profile tyres giving a stiffer sidewall and better cornering.

One thing to check is the road rating on the new tyres. On the sidewall with tyre size will be a different number.

eg. 205/55/16 93 The last number 93 is the load rating. The Galaxy's should be at least 93

Link to load ratings http://www.blackcircles.com/general/load-rating

Hope this helps

Chucks

Edit Lower profile tyres also mean a slightly harder ride as the walls don't flex as much, but the changes in size you are considering IMO would be small

Edited March 22, 2011 by chucks4x4

[billyboys2008]

thanks alot i will get the makes of each tyre and post them here with there sizes and letters to see if they are decent thanks

[sparky Paul]

One thing to check is the road rating on the new tyres. On the sidewall with tyre size will be a different number.

eg. 205/55/16 93 The last number 93 is the load rating. The Galaxy's should be at least 93

 

AFAIK, the minimum load rating for standard fit mk.1/2 Galaxy tyres is 94, and later cars are fitted with 95 or higher. If the 205/55R16 are not reinforced or extra load, they will be 91 rated, and not sufficient. If they are RF or XL, they will probably be 94 rated, which would be just good enough.

 

That said, I would advise against fitting any tyre size which is not listed as standard fit by Ford, but that's just my opinion. Lots of people fit aftermarket wheel/tyre combinations, but I would advise clearing it with your insurance company before shelling out for wheels.

[billyboys2008]

ok sorry for this ok this is the 4 tyres thats on my car the now

 

FWPS CAMAC 195/65 R15 95T

BWPS P6000 195/65 R15 91V

FWDS TIRESTONE 195 /65 R15 95T

BWDS DUNLOPSP9 195/65 R15 91T

 

OK THE 4 WHEELS I HAVE BEEN GIVIEN ARE

BARUM ROTATIO 205/55 R 16 91V

MICHELIN 205/55 R16 91 V

BARUM ROTATION 205/55 R16 91V

MICHELIN 205/55 R16 91V

 

 

OK AS U CAN SEE THE 1S I HAVE HAD ON MY BACK WHEELS WAS ONLY 91 V AND T i see some say has to be 93 or higher

 

so do you think it would be ok to use the 1s i have said to use all 4 new rims and tyres or put 2 old 1s on and 2 new 1s what would be your advice

[sparky Paul]

Out of the eight tyres you have, only the 95 rated ones you have on the front are legal on the Galaxy.

[billyboys2008]

cheers so your saying at your own risk put them on but they will do the job as i had 91v on them already they were on it when i got the car

[edatelder]

The 2001 (Mk2) handbook says that you can use the following tyres:

195/60 R 16 C 97 or 99

205/55 R 16 C 96 or 98

215/55 R 16 95 rf.

225/45 R 17 94

all bove H, V or W depending on engine performance (rf. = reinforced)H is fine for diesels

Winter tyres

195/60 R 16 C 97 or 99 T M&S

215/55 R 97 H rf. M&S

[Mirez]

cheers so your saying at your own risk put them on but they will do the job as i had 91v on them already they were on it when i got the car

 

The 91 rating isn't high enough for the Galaxy - in other words the tyre isn't up to the job of carrying the weight. Its not only a risk to yourself and others but as above its illegal, perhaps more importantly though its a

[sparky Paul]

cheers so your saying at your own risk put them on

 

I think you misunderstood what I said. Tyres of a different size but rated for the load are legal, subject to agreement with your insurer. 91 rated tyres of any size are not legal.

 

I would read Mirez's response above very carefully.

[billyboys2008]

cheers all so i should try get 93 above tyres cheers

[sparky Paul]

cheers all so i should try get 93 above tyres cheers

 

94 rated or better.

 

All Ford standard fit tyres are rated 94 or higher, I've never seen any Ford literature which specifies any lower rating.