Reply With QuoteJust because it's you, I'm prepared to swap my 17's.......
Volkswagenist
I think 17's will look very small and disproportionate on the R... I know what you are saying about NQ roads, having just moved from Townsville, but I was running 18's with 35 profile rubber on them, and didn't have any real problems on my Polo GTI....
Last edited by Blitzen; 14-06-2011 at 12:24 PM.
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Ultimate Dubber
Just because it's you, I'm prepared to swap my 17's.......
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Volkswagenist
VW's tyre/rim sizing is a mystery to me as they don't seem to always choose the closest match for the different rim diameters.Originally Posted by Diesel_vert
The "standard" fitment for the R is the 225/40R18 which matches well with the 225/45R17 (and 205/50R17 but I can't see you fitting these). Then again, the 235/35R19 is the closest match in the 19" to the "standard" fitment.
Is there odometer adjustment in VCDS for this?
It all depends on what is more important - what other people think or what you think.
Performance nearly always gets the nod over fashion for me.
Last edited by kaanage; 14-06-2011 at 01:48 PM.
Volkswagen Fanatic
225/35 R19 does indeed more closely match 225/40 R18 - however, with a load index of either 84 or 88 XL, the load capacity of any 225/39 R19 tyre is insufficient for the Golf, hence why I suspect VW went for the next size up.
Choosing between an incorrect speedo (which could be fixed via software) or potential for overloading the tyres (potential safety/legal ramifications)? VW probably went for the former rather than the latter.
Don't know, but I wouldn't be surprised if there were such an option, as I imagine any system dependent on a pre-specified rolling circumference (ABS, ESP, etc) would need to be configured according to pre-specified tyre fitments.
Luckily, having the vehicle preconfigured for 235/35 R19 tyres means the OP would do well from fitting 235/45 R17 or 235/40 R18 tyres.
In my opinion (like the OP needs any more) I reckon 235/40 R18 95Y XL tyres on 8.0 J 18 wheels would provide the best compromise between ride, handling, grip, aesthetics and practicality.It all depends on what is more important - what other people think or what you think.
Performance nearly always gets the nod over fashion for me.
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VWwA Super Moderator
haha nice one!
I wouldnt be stressing about it. most newer cars speedos are out so if anything it may correct it going to a slightly bigger tyre.
Volkswagen Fanatic
It will make your speedo more accurate as they do read higher from factory, but in your MFD there is a kmh adjustment to counteract aforementioned winter setup.
Volkswagen Fanatic
OP is moving to smaller wheels & tyres, i.e. from 235/35 R19 to either 235/40 R18 or 235/45 R17.
235/35 R19 has the biggest rolling circumference of all the tyre sizes mentioned in this thread so far.
Volkswagen Fanatic
without knowing the exact circumference of each (use a wheel and tyre calculator for specifics) but you can +/- to adjust on our MFD I'm pretty sure.
Volkswagenist
I know the speedo can be adjusted relative to the odometer but can the odometer (being the base distance measurement) be adjusted as well?
Volkswagen Fanatic
To expand on what I said earlier, fitting smaller tyres will make the speedo read faster, not slower.
The speedometer is supposed to be set up in such a way that it shall never underestimate the vehicle's speed. Reducing the rolling circumference exacerbates that effect, and vice versa.
Rolling circumference of various tyre sizes (from smallest to largest):
225/45 R17 = 1934 mm
225/40 R18 = 1943 mm
205/50 R17 = 1946 mm
235/45 R17 = 1964 mm
235/40 R18 = 1967 mm
235/35 R19 = 1973 mm
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