lowering my micra...

[CMF_Schon]

Need help guys,

I want to change my 13's into 15's rims and I think it'll make my car a bit higher on its height. If so, what will I do to make my car lower and avoid the tyres of hitting the fenders?

Thanks guys,

 

[CMF_asdame]

it shouldn't really affect the overall wheel diameter therefore ride height if you mix the alloy dia/tyre height ratio correctly to maintain the original overall size.

eg. i moved from 175/70/13 to 195/50/15 maintaining the overall diameter of 576mm, which makes my speedo reading spot on against the gps

 

[CMF_alexzaki1986]

Jup, you should't have any problems at all

Although fitting 15" rims will optically make your car look like a jeep if you'll not lower it later

I also moved from original wheels 155/70/13 to 195/45/15 and lowered the car using H&R spring kit and there is no problem at all. Even when having passengers beside

Here's a usefull page containing many links covering that topic:

http://www.forum.nissan-si.net/viewtopic.php?f=9&t=2627

In that topic you'll find many useful links (wheel fitment, tyre stretch, rolling radius and speedometer error calculator, ideal rim-width calculator...)

I know it's Slovene, but the links are all in english

BTW, if want to see how a K11 looks on 15" 7J rims and lowered 30mm here's a link to my presentation:

https://micra.org.uk/cmf/message/51712

See ya,
Alex

 

[CMF_Schon]

Thanks mate...

BTW if I want to change my coil overs what sizes do I need? What is the original size of the stock?

 

[CMF_Schon]

other thing, does 195/45/15 affects the speed or is it efficient?

 

[CMF_asdame]

the overall dia would be 556mm, pretty similar to the stock 155/70/13 at 547mm so speedo reading would still read like 3-5mph higher

i prefer my 195/50/15 576mm outer diameter cos it revs lower on motorways, correct speed reading, fills the arches better

 

[CMF_Schon]

thanks a lot mate...