tyre size for unions - Page 2

Dallas · 6th May 2011, 20:32

Take a look here..... http://www.kouki.co.uk/utilities/vis...ize-calculator pop in the trye details and Hey! Presto!

As Mango Man has said! you rolling radius will be smaller.....
You will be going from 201.97cm to 198.36cm, so when you are doing a speed of 30mph you will be actually doing 29.5mph and when doing a speed of 60mph then you will be doing just only 58.9mph.

Now can anybody help me! what is the correct Speed Rating for 215/55/16 tyres and do they need to be Extra Load.

Clickernick · 6th May 2011, 21:50

Yes they need to be W rated, not v rated, i think this is the extra speed/ weight rating!

I have Falken 452 tyres. 215/55/16W

Dallas · 6th May 2011, 22:12

Yep! 16" wheels with a 55 profile need to be Speed Rating 'W' rated and the Load Rating needs to be 93 or above........ Just found this out as illustrated in the Owners Handbook......

awvc1 · 14th February 2016, 15:43

if you want a smoother ride, has anyone tried 215 65 R16's on Unions?

I'm wondering if this might be nicer and fill the wheel arch out a tiny bit more?

Currently I have 215 55 R16's and feels like they get stuck in tramlines on the road at times they ride so rough. But then I'm comparing to my CDT with 15 inch 65's on.

I was wondering if Dunlop blueresponse tyres might be good to restore some sense of luxury to the ride.

http://www.blackcircles.com/tyres/br...rt-bluresponse

awvc1 · 15th February 2016, 14:48

has anybody tried 65 profile tyres on 16 inch alloys at all here perhaps then?

I'm really not enjoying the ride quality on my unions

MangoMan · 15th February 2016, 15:32

I know 225/55x16 fit. It does raise the aspect slightly so will aid in smoothness.
Failing that I would suggest fitting some 15inch Crowns. A lot smoother ride.
Just done some calculations.
By fitting 65 aspect ratio tyres will increase your diameter by just under 2 inches. In my opinion too much being a 6.7% increase!
Fitting 225/55x16 will increase by just under an inch, or 1.7% increase in diameter.
It is always advisable to stay within +/- 2%.

But of course you could always try. After all it is your car.

Ciao.

awvc1 · 15th February 2016, 16:14

thanks Bill

the car already has 215 55 16's, surely fitting 225's will just make things even worse? They are wider?

MangoMan · 15th February 2016, 17:16

Quote:

Originally Posted by awvc1

thanks Bill

the car already has 215 55 16's, surely fitting 225's will just make things even worse? They are wider?

I think this is what some people do not understand, the 55 figure is a PERCENTAGE of the width, not a static measurement.
So by increasing the width also increases the height of the sidewall giving more movement and increased compliance.
So no, it will not make it worse, it will make it better. (Slightly).

6th May 2011, 21:50	#12
Clickernick Posted a thing or two Rover 75 Connie SE Tourer Triumph Street Triple R Join Date: Aug 2009 Location: Bletchley, Milton Keynes Posts: 1,163 Thanks: 75 Thanked 91 Times in 65 Posts	Yes they need to be W rated, not v rated, i think this is the extra speed/ weight rating! I have Falken 452 tyres. 215/55/16W __________________ Real walnut interior. Original refurbished Forked Spokes 16” with Michelin Primacy 4 rubber, Pioneer AVH-Z9200DAB double din Wi Fi phone integration. Retrofitted twin front horns. 160 re-map. Revotec fan. Silicone intercooler hoses and ‘O ring’ replacement. Top hose thermostat. New walnut and smokestone steering wheel with cruise upgrade. Brembo Brakes. Ceramic coated rear Exhaust. L/engine mount, Hydramount, Bosch MAF. Focal Access Drivers and Focal Amp. Last edited by Clickernick; 6th May 2011 at 21:52..

14th February 2016, 15:43	#14
awvc1 Posted a thing or two Rover 75 Saloon Join Date: Jan 2015 Location: Essex Posts: 1,177 Thanks: 221 Thanked 258 Times in 196 Posts	if you want a smoother ride, has anyone tried 215 65 R16's on Unions? I'm wondering if this might be nicer and fill the wheel arch out a tiny bit more? Currently I have 215 55 R16's and feels like they get stuck in tramlines on the road at times they ride so rough. But then I'm comparing to my CDT with 15 inch 65's on. I was wondering if Dunlop blueresponse tyres might be good to restore some sense of luxury to the ride. http://www.blackcircles.com/tyres/br...rt-bluresponse __________________ White Gold ConnSE, 2003 Mods: FBH Revotec Fan Inline 'stat Xenon lights + washers BMW MK4 satnav, clock mod, BT ulf, 16:9 screen & TV upgraded BM54 + BT Aux-in Miracast box Glasses holder Flip Key Spyhole +Jules plenum shield PPD - badges,rear plinth, carpeted heater panels, anchor bolts, reflectors Walnut Dash, handbrake+gearshift Twin Horns Drivers cupholder HK Speakers Chrome bullet mirrors Digital speedo LED interior bulbs Resler interface USB charging sockets x2

15th February 2016, 14:48	#15
awvc1 Posted a thing or two Rover 75 Saloon Join Date: Jan 2015 Location: Essex Posts: 1,177 Thanks: 221 Thanked 258 Times in 196 Posts	has anybody tried 65 profile tyres on 16 inch alloys at all here perhaps then? I'm really not enjoying the ride quality on my unions __________________ White Gold ConnSE, 2003 Mods: FBH Revotec Fan Inline 'stat Xenon lights + washers BMW MK4 satnav, clock mod, BT ulf, 16:9 screen & TV upgraded BM54 + BT Aux-in Miracast box Glasses holder Flip Key Spyhole +Jules plenum shield PPD - badges,rear plinth, carpeted heater panels, anchor bolts, reflectors Walnut Dash, handbrake+gearshift Twin Horns Drivers cupholder HK Speakers Chrome bullet mirrors Digital speedo LED interior bulbs Resler interface USB charging sockets x2

15th February 2016, 15:32	#16
MangoMan This is my second home Looking.... Join Date: Oct 2010 Location: England Posts: 10,911 Thanks: 862 Thanked 1,111 Times in 868 Posts	I know 225/55x16 fit. It does raise the aspect slightly so will aid in smoothness. Failing that I would suggest fitting some 15inch Crowns. A lot smoother ride. Just done some calculations. By fitting 65 aspect ratio tyres will increase your diameter by just under 2 inches. In my opinion too much being a 6.7% increase! Fitting 225/55x16 will increase by just under an inch, or 1.7% increase in diameter. It is always advisable to stay within +/- 2%. But of course you could always try. After all it is your car. Ciao. __________________ *Regards, Bill - (MangoMan).* (Member 00854) http://i1110.photobucket.com/albums/...d.jpg~original Last edited by MangoMan; 15th February 2016 at 15:45..

15th February 2016, 16:14	#17
awvc1 Posted a thing or two Rover 75 Saloon Join Date: Jan 2015 Location: Essex Posts: 1,177 Thanks: 221 Thanked 258 Times in 196 Posts	thanks Bill the car already has 215 55 16's, surely fitting 225's will just make things even worse? They are wider? __________________ White Gold ConnSE, 2003 Mods: FBH Revotec Fan Inline 'stat Xenon lights + washers BMW MK4 satnav, clock mod, BT ulf, 16:9 screen & TV upgraded BM54 + BT Aux-in Miracast box Glasses holder Flip Key Spyhole +Jules plenum shield PPD - badges,rear plinth, carpeted heater panels, anchor bolts, reflectors Walnut Dash, handbrake+gearshift Twin Horns Drivers cupholder HK Speakers Chrome bullet mirrors Digital speedo LED interior bulbs Resler interface USB charging sockets x2 Last edited by awvc1; 15th February 2016 at 16:17..

6th May 2011, 20:32	#11
Dallas This is my second home 1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009 Location: Dorset Posts: 8,595 Thanks: 3,496 Thanked 3,397 Times in 2,218 Posts	Take a look here..... http://www.kouki.co.uk/utilities/vis...ize-calculator pop in the trye details and Hey! Presto! As Mango Man has said! you rolling radius will be smaller..... You will be going from 201.97cm to 198.36cm, so when you are doing a speed of 30mph you will be actually doing 29.5mph and when doing a speed of 60mph then you will be doing just only 58.9mph. Now can anybody help me! what is the correct Speed Rating for 215/55/16 tyres and do they need to be Extra Load.

6th May 2011, 22:12	#13
Dallas This is my second home 1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009 Location: Dorset Posts: 8,595 Thanks: 3,496 Thanked 3,397 Times in 2,218 Posts	Yep! 16" wheels with a 55 profile need to be Speed Rating 'W' rated and the Load Rating needs to be 93 or above........ Just found this out as illustrated in the Owners Handbook......