40's or 45's?? 215/205??
#1
Scooby Regular
Thread Starter
Join Date: Apr 2004
Location: Kirrie.......near Dundee
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
40's or 45's?? 215/205??
im replacing the 4 tyres again on my car, usually go for 205/45/17's as thats what was on it when i got it, whats the pros/cons on the slightly smaller rolling radius bu fitting 205/40/17?? lower top speed, better acceleration? will i notice any difference? will it still be ok on my car?
also what difference would fitting the slightly wider 215 make?
cheers rory
my car is a 97 uk turbo btw with twin 6 spoke techno mag wheels.
also what difference would fitting the slightly wider 215 make?
cheers rory
my car is a 97 uk turbo btw with twin 6 spoke techno mag wheels.
#2
Originally Posted by Rory_McW
im replacing the 4 tyres again on my car, usually go for 205/45/17's as thats what was on it when i got it, whats the pros/cons on the slightly smaller rolling radius bu fitting 205/40/17?? lower top speed, better acceleration? will i notice any difference? will it still be ok on my car?
also what difference would fitting the slightly wider 215 make?
cheers rory
my car is a 97 uk turbo btw with twin 6 spoke techno mag wheels.
also what difference would fitting the slightly wider 215 make?
cheers rory
my car is a 97 uk turbo btw with twin 6 spoke techno mag wheels.
I don't think you'll notice the extra 10mm if you go for 215/40/17.
If you fit other sizes your speedo will be out.
Most people fit 215/40/17 instead of 205/45/17 as they are more widely available (Toyo, Goodyear, etc.)
#3
Other sizes ?
What about 215/45/17 ?
That is what I have on my '00 classic (came with wheels I fitted recently )
Would this affect gearing or speedo reading ?
I have not felt any rubbing and they look and feel "right"
Any thoughts ?
Al.
That is what I have on my '00 classic (came with wheels I fitted recently )
Would this affect gearing or speedo reading ?
I have not felt any rubbing and they look and feel "right"
Any thoughts ?
Al.
#5
Scooby Regular
iTrader: (1)
Join Date: Dec 2000
Location: Herts.
Posts: 1,727
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by ally-b
What about 215/45/17 ?
That is what I have on my '00 classic (came with wheels I fitted recently )
Would this affect gearing or speedo reading ?
I have not felt any rubbing and they look and feel "right"
Any thoughts ?
Al.
That is what I have on my '00 classic (came with wheels I fitted recently )
Would this affect gearing or speedo reading ?
I have not felt any rubbing and they look and feel "right"
Any thoughts ?
Al.
The effect is to lengthen the gearing slightly - you will have poorer acceleration but higher top speed in theory.
205/45/17 are only 0.8% bigger and 215/40/17 are 1.2 % smaller so are a closer match to the original.
There are various calculator tools on the web you can work this out with.
I would have the 205/45/17 if possible, but since I'm using 7.5" wide rims I have 215/40/17 as 205 are not wide enough.
Last edited by Boost II; 29 October 2005 at 12:08 PM.
#6
Scooby Regular
Join Date: Jan 2005
Location: Cirencester
Posts: 890
Likes: 0
Received 0 Likes
on
0 Posts
i got the same dilema at the moment
i have 17x7.5" rims so will fit 215's
but after just waving goodbye to 2 eagle f1's last night ,im tempted to up from the 40 profile to 45 and get something with a stiffer sidewall.
am i likely to get any rubbing or any other problems ??
i have 17x7.5" rims so will fit 215's
but after just waving goodbye to 2 eagle f1's last night ,im tempted to up from the 40 profile to 45 and get something with a stiffer sidewall.
am i likely to get any rubbing or any other problems ??
#7
Originally Posted by Boost II
Compared to your original 205/50/16, you will find 215/45/17 have a circumference which is 2.3% larger and when speedo reads 70 mph you are really doing 71.6 mph.
Trending Topics
#8
Scooby Regular
iTrader: (1)
Join Date: Dec 2000
Location: Herts.
Posts: 1,727
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by rgv_stu
i got the same dilema at the moment
i have 17x7.5" rims so will fit 215's
but after just waving goodbye to 2 eagle f1's last night ,im tempted to up from the 40 profile to 45 and get something with a stiffer sidewall.
am i likely to get any rubbing or any other problems ??
i have 17x7.5" rims so will fit 215's
but after just waving goodbye to 2 eagle f1's last night ,im tempted to up from the 40 profile to 45 and get something with a stiffer sidewall.
am i likely to get any rubbing or any other problems ??
The only real way to know is to find someone with your exact wheels and tyres on a similar car.