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inde_house
Thursday 20th September 2012, 10:15
Currently it's running on 205 50 16.

Thinking of changing to 205 55 16 extra load.

Is it a good idea or not.

M-R-P
Thursday 20th September 2012, 10:32
What are you hoping to achieve?

inde_house
Thursday 20th September 2012, 11:15
Bit of a less bumpy ride. And filling out the arches without lowering.t

How will it affect the ride quality

p fandango
Thursday 20th September 2012, 12:49
i'd have a check on the inside of the fuel filler cap, i've got a feeling 205/55/16 is the original size

nobananas
Thursday 20th September 2012, 13:29
It's what I've been running on mine for 6 years now !

inde_house
Thursday 20th September 2012, 21:13
So the filler cap says 205 50 16.

Getting back to changing the size. Wat to do.

Seems like there is a mix of tyres being run on the 850 out there.

nobananas
Thursday 20th September 2012, 22:25
To be honest I changed to that size for the same reasons as you have mentioned, the roads round my way are dreadful and having a slightly taller section made things a little more comfortable.

woz
Friday 21st September 2012, 23:52
205/50 is the orig size unless you have 17" wheels.

If you change the aspect ration to 55 you wil have better comfort - dependingon tyre construction etc., lower revs at a given speed - possibly better fuel consumption depending on engine and transmission mods, and a speedo which reads on the low side but well withing the legal margin of error - just watch yourself near the speed limit.

The other difference is that 205/55 are more common than 205/50 so are cheaper to BUY!! That will prob be the main difference - the volume of sales to the mondeo/passat brigade keeps the cost down and heaven forbid if you are happy with ex-fleet tyre change second hand ones you could get some really good, low mileage, good brand tyres (say off the back of a company mondeo)for less than a brand new budget§§§§e 205/50

No-one here seems to have raised any major objections so it seems like a pretty good gamble to me.
Woz:>)



The

thunderace
Saturday 22nd September 2012, 08:12
I have run the same size on my 855 too.
The only thing against that I can think of, is the speedo is slightly out.
Speedo shows 100 and true speed would be 103.35, due to the increased aspect ratio/20mm increase in diameter.
Not really a problem in the real world, eh?

Porcine_Aviator
Saturday 22nd September 2012, 12:33
I have run the same size on my 855 too.
The only thing against that I can think of, is the speedo is slightly out.
Speedo shows 100 and true speed would be 103.35, due to the increased aspect ratio/20mm increase in diameter.
Not really a problem in the real world, eh?

Just don't get caught, mind you those track day cars can be quick ;)

Dangerous Dave
Saturday 22nd September 2012, 13:17
My 850 AWD runs 205/55 R16 as standard. Don't think you'll have a problem.

T5frankie
Saturday 22nd September 2012, 13:39
apart from the 55 tyres will look chod 35's all the way for me lol