GolfGTIforum.co.uk
General => Cosmetic and bodywork matters => Topic started by: Mark b on 27 May 2013, 00:28
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On my car my tyres at the mo are 225/40/18 could I also use 225/45/18 and what the difference between the 2
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http://www.google.co.uk/url?sa=t&rct=j&q=tyre%20size%20calculator&source=web&cd=2&cad=rja&sqi=2&ved=0CEIQFjAB&url=http%3A%2F%2Fwww.etyres.co.uk%2Ftyre-size-calculator&ei=6aCjUdXXM8LYPbOlgIgH&usg=AFQjCNEUfpMpY9MQe6AdE3SD-vteJ3rt1w
If they're within the limits suggested, as long as they will fit under your arches ok there shouldn't be a problem.
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the difference is the profile size 45 is bigger/higher
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225/40/18's are needed to keep the gearing / speedo correct.
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225/40/18's are needed to keep the gearing / speedo correct.
This, your speedo will be out by a few mph at 60.
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225/40/18's are needed to keep the gearing / speedo correct.
Cheers Wayne ill keep to those then :-)
When I go over 60 I get some vibration on the steering wheel would it be the tracking or balancing
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When I go over 60 I get some vibration on the steering wheel would it be the tracking or balancing
Balancing or missing spiggot rings
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When I put the alloys on they fitted snug on the hub should I but some rings anyway ? As ill be replacing all the tyres soon and they will get balanced when I get them fitted
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When I put the alloys on they fitted snug on the hub should I but some rings anyway ? As ill be replacing all the tyres soon and they will get balanced when I get them fitted
If they are a tight fit on the hub that is what really matters, so no spiggot rings needed.
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The alloys fitted straight as they came off another mk4 golf so do you think it'll be the balacing or tracking as my car does drift slightly to the left when I let go of the wheel
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Tyre sizes 225/40zr18 basically means 225mm across tread 40% of 225 is sidewall and of course 18 is wheel diammeter soa 225/45 zr18 would have 45% of 225 mm so a larger sidewall so the rolling circumference of the the tyre is larger by 5% and also sidewall flex is greater when cornering hence innacurate speedo reading , that said most speedo are around 10% innacurate anyway over 50mph unless professionally calibrated , wheel vibration is usuaaly down to balancing however other causes can be things called blebs bit of an odd word i know ? These are like egg on sdewall where the rayon sidewall may of been ruptured at some point by pothole or bumping up kerb at some point , another cause can be over age all tyres are dated and once a tyre reaches 5 years the rubber will very slowly deteriorate causing imbalance . The date of a tyre is written on its sidewall , only on 1 side look for an oval shape with 4 digits in it and the letters DOT before it ( Date of Tyre ) for eg DOT 1906 WOULD MEAN 19th week of 2006 so wud be overage where as 1909 would be 19th week of 2009 hope this helps uou in some way always handy to know if purchasing tyres as its illegal to sell any new tyres that are over 4 years old . Once they hit 4 they should be returned to manufacturer by the tyre garage and the manufacturer is then responsible for the destruction of the tyre
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Thanks a lot for that very helpfull
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If the whole car shakes it is Wheel balancing
If the Steering Wheel shakes it is tracking / Wheel Alignment