another tyre question

peelaaa · 20th March 2019, 15:00

Hi, I want to replace a set of 215/55/16 tyres but have found that the 205/55/16 of same brand is about 30 % cheaper.

Can these be fitted or would it not be recommended?

thanks

Mike Trident · 20th March 2019, 15:35

Personally I would always stick the the manufacturers recommendation

Avulon · 20th March 2019, 16:11

Quote:

Originally Posted by peelaaa

Hi, I want to replace a set of 215/55/16 tyres but have found that the 205/55/16 of same brand is about 30 % cheaper.

Can these be fitted or would it not be recommended?

thanks

Assuming it's for a 75 saloon (not a zt 190 or a v8!) then these should be fine. The 75 15" wheels can have 195/65/15 so even narrower tread than your 205 option. What you will find though is that the rolling radius is smaller (causing the speedo to over-read even more than usual) and that 55% of 205 isn't quite as much as 55% of 215 giving less tyre sidewall height (a harder ride). Just don't mix the two sizes at all not even on different axles as the ABS system may well not like different sized wheels front and back.

cengar · 20th March 2019, 16:13

The difference is only 10mm in width so not much but you do loose some contact with road

Dorchester2 · 20th March 2019, 18:18

Quote:

Originally Posted by Avulon

Just don't mix the two sizes at all not even on different axles as the ABS system may well not like different sized wheels front and back.

At the moment I've got 205/65/15 (fitted by the previous owner) at the front and 195/65/15 (fitted by myself) at the rear (You may guess the latter are cheaper, but far cheaper 50€ vs 75€) and I haven't got the faintest problem with the ABS system.
But it may not pass our MOT (CT) though. Hence next September I'll have 195/65/15 fitted at the front as well.

Andy_with_a_screwdriver · 20th March 2019, 18:52

Quote:

Originally Posted by peelaaa

Hi, I want to replace a set of 215/55/16 tyres but have found that the 205/55/16 of same brand is about 30 % cheaper.

Can these be fitted or would it not be recommended?

thanks

https://tiresize.com/comparison/

Put your tyre sizes in here to compare, I make it 1.6% bigger diameter on 205s.

Also useful for finding alternatives.
https://www.oponeo.co.uk/advice-and-...nativeTireTool

Any of the 3 sizes (15" & 16") in the handbook will give a very similar if not identical diameter. Wider tyres give more grip in the dry due to a wider footprint, but are slightly more prone to aquaplaning in standing water for a given vehicle mass. Take your pick

victorgte · 20th March 2019, 21:50

Quote:

Originally Posted by peelaaa

Hi, I want to replace a set of 215/55/16 tyres but have found that the 205/55/16 of same brand is about 30 % cheaper.

Can these be fitted or would it not be recommended?

thanks

I have 4 tyres available if you are interested. One is virtually new and the other 3 are about 5 to 6mm. All are 215/55/16. Now that I’ve said that I see you are in Meath near Dublin. Hardly close for a collection!

coab · 21st March 2019, 05:15

How would your insurance company feel about you changing the size from the manufacturers spec in the event of an accident?

Worth asking.
Heres a quote from Tyre shopper.......
Size:
Stick to the original size recommended by the manufacturer. Are you considering plus sizing your tyres? Read the pros and cons of the move here. But that aside, plus sizing your tyres without informing your insurer may invalidate your insurance. In case of such modification, informing your insurer by phone (or writing) may do the trick. It may result in an increase in premium. But you get to do what you want and still have a valid insurance.

Avulon · 21st March 2019, 07:41

Quote:

Originally Posted by Dorchester2

At the moment I've got 205/65/15 (fitted by the previous owner) at the front and 195/65/15 (fitted by myself) at the rear (You may guess the latter are cheaper, but far cheaper 50€ vs 75€) and I haven't got the faintest problem with the ABS system.
But it may not pass our MOT (CT) though. Hence next September I'll have 195/65/15 fitted at the front as well.

Sounds like a drag racing setup for a front wheel drive car... fat fronts and skinny rears. Any abs problems would only show (if at all) when using the brakes lightly at low speed.

Lord of Hog · 21st March 2019, 09:41

Closest you could get to the same rolling radius would 205/60s

20th March 2019, 15:00	#1
peelaaa Posted a thing or two 75 cdti 2004 contemporary Join Date: Apr 2008 Location: meath Posts: 1,551 Thanks: 272 Thanked 80 Times in 58 Posts	another tyre question Hi, I want to replace a set of 215/55/16 tyres but have found that the 205/55/16 of same brand is about 30 % cheaper. Can these be fitted or would it not be recommended? thanks

20th March 2019, 15:35	#2
Mike Trident Posted a thing or two Rover 75 CDTi Saloon & Citroen C1 Join Date: Jun 2016 Location: Oakenshaw, Near Bradford Posts: 1,622 Thanks: 385 Thanked 552 Times in 328 Posts	Personally I would always stick the the manufacturers recommendation __________________ Rover 75 2.0 CDTi (131Ps) Conn SE Saloon. (Manual) 160 Remap, cruise control, electric window blind, temp gauge, Real walnut / ZT interior, FBH with GSM control. BORN Tuesday, 5th October 2004 @ 12:35:52 This vehicle was the 104,679th 75 to run off the production line, out of 112,381 This vehicle was the 3,318th 75 CDT Connoisseur SE (135) to be made out of 4,744 This vehicle was the 12,440th 75 in Starlight Silver (code: MBB) to be made out of 14,280 Starlight Silver 75s

21st March 2019, 05:15	#8
coab This is my second home 2007 57 GOLF GTi EDITION 30 DSG Join Date: Nov 2011 Location: Newport Shropshire and Coventry. Posts: 5,137 Thanks: 2,424 Thanked 1,452 Times in 852 Posts	How would your insurance company feel about you changing the size from the manufacturers spec in the event of an accident? Worth asking. Heres a quote from Tyre shopper....... Size: Stick to the original size recommended by the manufacturer. Are you considering plus sizing your tyres? Read the pros and cons of the move here. But that aside, plus sizing your tyres without informing your insurer may invalidate your insurance. In case of such modification, informing your insurer by phone (or writing) may do the trick. It may result in an increase in premium. But you get to do what you want and still have a valid insurance. Last edited by coab; 21st March 2019 at 05:19..

21st March 2019, 09:41	#10
Lord of Hog Gets stuck in Rover 75 2.5 V6 in Wedgwood Blue Join Date: Dec 2015 Location: Felbridge, East Grinstead Posts: 982 Thanks: 250 Thanked 294 Times in 206 Posts	Closest you could get to the same rolling radius would 205/60s __________________ Conformity is not morality. Consensus is not truth.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

20th March 2019, 16:13	#4
cengar Loves to post rover 75 saloon cdti Join Date: Mar 2010 Location: Trelights Posts: 351 Thanks: 158 Thanked 168 Times in 123 Posts	The difference is only 10mm in width so not much but you do loose some contact with road