Tyres - Quick answer Needed
#1
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Is it OK to Put 225/45R17 tyres on standards 05 WRX rims- Current tyre is 215/45R17.
I know its in the wrong area but I need to order my tyres before Mr Plod gets me...
I know its in the wrong area but I need to order my tyres before Mr Plod gets me...
#2
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the 45 is a % of the width and gives the effective height of the tyre wall, so fitting wider tyres will increase the overal rolling diameter of the tyre and make your speedo wrong (although will probably correct the standard over reading )- will also raise gearing slightly reducing acceleration a bit
when increasing the tyre width you should change the profile i.e 40 etc. to retain the same rolling diameter and check it won't rub!!
talk to a tyre specialist.
when increasing the tyre width you should change the profile i.e 40 etc. to retain the same rolling diameter and check it won't rub!!
talk to a tyre specialist.
#3
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http://www.tyresave.co.uk/tyresize.html
http://www.miata.net/garage/tirecalc.html
The second one will work out the difference to your speedo reading, which will be -0.9mph @ 60mph. As your speedo will always read over by as much as 10%, loosing 1.4% just makes it a little more accurate. No problem fitting these tyres, just be aware that they may tramline ever so slightly more than the narrower OE ones.
http://www.miata.net/garage/tirecalc.html
The second one will work out the difference to your speedo reading, which will be -0.9mph @ 60mph. As your speedo will always read over by as much as 10%, loosing 1.4% just makes it a little more accurate. No problem fitting these tyres, just be aware that they may tramline ever so slightly more than the narrower OE ones.
#5
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what the hell are you talking about this guy is putting wider tyres on not changing the profile hight, yes they will be fine that is the fitment size for an sti and i myself have a wrx 2003 and have put 225's on insteat of 215's the only diff is going to be if it rains or snows as its better to have thiner wheels for better grip, just see the wrc cars width tyre when on gravel or snow and tarmac's are alot wider. dont listen to these ***** as they dont seam to know what there talking about, unles they just cant read
#6
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Originally Posted by explore
what the hell are you talking about this guy is putting wider tyres on not changing the profile hight, yes they will be fine that is the fitment size for an sti and i myself have a wrx 2003 and have put 225's on insteat of 215's the only diff is going to be if it rains or snows as its better to have thiner wheels for better grip, just see the wrc cars width tyre when on gravel or snow and tarmac's are alot wider. dont listen to these ***** as they dont seam to know what there talking about, unles they just cant read
Last edited by justanotherperson; 03 February 2006 at 06:25 PM.
#7
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Originally Posted by explore
what the hell are you talking about this guy is putting wider tyres on not changing the profile hight, yes they will be fine that is the fitment size for an sti and i myself have a wrx 2003 and have put 225's on insteat of 215's the only diff is going to be if it rains or snows as its better to have thiner wheels for better grip, just see the wrc cars width tyre when on gravel or snow and tarmac's are alot wider. dont listen to these ***** as they dont seam to know what there talking about, unles they just cant read
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The aspect ratio (ie 45) is a percentage of the tyres width. So 45% of 225 is greater that 45% of 215 and therefore will have a greater rolling circ./tyre wall height.
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#8
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Wow, I only asked!!!!
The reason I asked was I have been on the Mitchelin web site and they say that they only do Pilot Sports in 225/45/17, however, I think this is an old table.
So what Pilot Sports (2?) can I fit on standard WRX rims (05)?? as these seem to be my tyre of choice at the moment.
The reason I asked was I have been on the Mitchelin web site and they say that they only do Pilot Sports in 225/45/17, however, I think this is an old table.
So what Pilot Sports (2?) can I fit on standard WRX rims (05)?? as these seem to be my tyre of choice at the moment.
#9
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Originally Posted by Zip Boing Arial Whoop
Wow, I only asked!!!!
The reason I asked was I have been on the Mitchelin web site and they say that they only do Pilot Sports in 225/45/17, however, I think this is an old table.
So what Pilot Sports (2?) can I fit on standard WRX rims (05)?? as these seem to be my tyre of choice at the moment.
The reason I asked was I have been on the Mitchelin web site and they say that they only do Pilot Sports in 225/45/17, however, I think this is an old table.
So what Pilot Sports (2?) can I fit on standard WRX rims (05)?? as these seem to be my tyre of choice at the moment.
215/45 17
OR
225/40 17
#10
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Went to the tyre calcualtors earlier - 225/45/17 + 9mm dia, 225/40/17 -13mm. So as me being a bit thick
speedo over reads (by quite a bit), which is best.
Plus do they do Mitch Pilot Sports 2 in either size?????
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Plus do they do Mitch Pilot Sports 2 in either size?????
#11
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The second of the calcs I posted will tell you by how much % your speedo will be +\- from the original size inputted
But as I said earlier, I wouldn't worry about it as it's marginal
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#13
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Originally Posted by corradoboy
The second of the calcs I posted will tell you by how much % your speedo will be +\- from the original size inputted
But as I said earlier, I wouldn't worry about it as it's marginal ![Roll Eyes (Sarcastic)](https://www.scoobynet.com/images/smilies/rolleyes.gif)
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#14
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Originally Posted by MarksWRX
The 225/45 will fill the arches and look much better IMO
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