Discussion
If you go to 19's then you're also going to have to go to 19" 35 profile rubber, which will cost a lot more than the 17's (e.g. 17" PS2 for £110, 19" for £180).
Also, as you've reduced the profile, you'll upset the suspension as it was set for a specific (or very close) size combo.
If you don't mind a bone jarringly hard ride, and like less progressive feeling to the handling then go for it!
Also, as you've reduced the profile, you'll upset the suspension as it was set for a specific (or very close) size combo.
If you don't mind a bone jarringly hard ride, and like less progressive feeling to the handling then go for it!
Its too low.
In a fictitious car, with 100cm circum wheels doing 1 wheel revolution in 2 secs.
The car will measure you have travelled 1 circumferance (100cm) in 2 secs and calculate speed as 0.5m/s
New wheels are let's say 150cm circumferance. Keeping the revolutions the same at 1 complete turn in 2 secs (ie drivesharft and engine turning at same speed as before) the new speed is actually 0.75m/s.
BUT.... the speedo will read the same as before. So it is reading low
you'll need a GPS speedo to recalibrate and make sure you don't get flashed by a 30mph camera.
Bigger wheels plus lower profile tyres equals correct speedo readings, or at least as close as makes no difference.
BMW do options for wheels on most models and they never bother changing the speedo.
EG. 535d. I had the optional 19s.
My one would have had the same speedo readings with 17, 18 or 19 inch wheels.
As the diameter grows, the profile reduces. Overall wheel size is virtually identical.
BMW do options for wheels on most models and they never bother changing the speedo.
EG. 535d. I had the optional 19s.
My one would have had the same speedo readings with 17, 18 or 19 inch wheels.
As the diameter grows, the profile reduces. Overall wheel size is virtually identical.
Gassing Station | BMW General | Top of Page | What's New | My Stuff