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fezziemk4   
Mon May 05 2014, 02:15pm
Member No: #31580
Joined: Jul 10 2013
Location: somerset
So guys, I'm going to be lowering my loeb soon and also want some new tyres, but I'm not sure what to do, currently running 205/50/17's but don't know weather to go down to maybe 195/45/17's
Would they fit? Or give me any problems?
Anyone else fitter smaller tyres or just different sized at all?
Any help/opinions appreciated
Cheers
routemaster1   
Mon May 05 2014, 03:39pm
Member No: #574
Joined: Jul 08 2007
Location: Dorset
fezziemk4 wrote ...

So guys, I'm going to be lowering my loeb soon and also want some new tyres, but I'm not sure what to do, currently running 205/50/17's but don't know weather to go down to maybe 195/45/17's
Would they fit? Or give me any problems?
Anyone else fitter smaller tyres or just different sized at all?
Any help/opinions appreciated
Cheers

The difference in rolling diameter is 4.7% (recommended max is 2%) so the speedo will read far too high. Reducing rolling radius is not the best way to lower a car, new springs are better but more expensive. Also people tend to want the wheelarches to be filled. Smaller tyres will look very odd.
fezziemk4   
Mon May 05 2014, 04:25pm
Member No: #31580
Joined: Jul 10 2013
Location: somerset
Thanks for the reply , what about going up to 225/50's then?
Cheers
mshowells78   
Mon May 05 2014, 05:11pm
Member No: #31414
Joined: Jun 28 2013
Location: Swansea
I have 215-45-17 on mine and thier good. Getting coilovers next but only to bring her down a bit. Keeping it looking normal but feeling tighter.
fezziemk4   
Tue May 06 2014, 02:51am
Member No: #31580
Joined: Jul 10 2013
Location: somerset
Do they look much different to when you had 205/50's on?
mshowells78   
Tue May 06 2014, 03:32am
Member No: #31414
Joined: Jun 28 2013
Location: Swansea
No idea sorry as the face lift mk1 VTR+ comes with 16" alloys. So got my self a set of resolfens and painted them anthracite in colour. Bought the 215-45-17 straight off as they hug the road a little better (in my own opinion)
CamM   
Thu May 29 2014, 01:45am

Member No: #19249
Joined: Apr 13 2011
Location: Sydney
You may want to use the tyre size calculator on site - Click Here - to see how the different tyre sizes will impact your vehicle. As routemaster1 indicated, switching to 195/45/R17's will give you a +4.7% difference in rolling radius. Going with your next suggestion of 225/50/R17's gives you a +3.14% difference. Again, this is too much.

There are really only two ways you can achieve the look you seem to be after. First - as routemaster1 suggested - is to lower the car (i.e. lowering springs or coil overs). Second is to go for a larger diameter wheel (e.g. 18"). If you take the second option, you will be forced to go with a lower profile tyre (e.g. 225/40/R18) to ensure that you maintain the same rolling diameter.
 

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