Lik

If you purchase tires locally, don't forget to include the provincial tire recycling levy. I can't remember if it was $5/tire or $10/tire. If you buy from TR, then obviously you skip that la. (I don't think CBSA charges you that.)

BBS are very nice wheels, but they are pretty pricy too. I personally prefer Enkei and OZ because they are a lot more affordable than BBS, and their specs are as good as BBS.

-Lik

celeron_266

sadly i dont even have cash for OZs or enkeis....
i got a quote from a neighbourhood tire store for the DWS - 757 dollars everything included

if i get from tirerack
$106/tire = $424 for four
$56.40 shipping
$59.24 HST
$29.68 duty
Fee for the place at Blaine ~ $20
Installation ~ $80 for four tires
Total ~ $670

so yea...$80 dollar saving....

(I was looking at the tirerack quote if i make them to ship all the way to canada...tirerack will charge the tire levy [$20]...so i am not sure if CBSA will charge it as well)

Lik

DTD is charging $116 each for the DWS, but shipping is already included. So:

$464 tires
$55.68 HST
$27.90 duty
mail depot fee ~$20
installation ~ $80

total ~$650

so ~$110 cheaper la?

Last time when I picked up tires from Pt. Roberts, CBSA didn't charge me duty nor tire levy. I can't say whether charge you for that. But for me, it was just PST/GST (or maybe it was already HST).

-Lik

celeron_266

the duty depends on the origin of the product i think...if the product is made in certain countries...there will be no duty..

ummm...$110 cheaper eh?...maybe i should consider that...

still need to find out if 225/50R16 tires will fit my 7Jx16 wheels nei...

thanks!!!

Lik

You can still mount 225/50/16 on 16x7 wheels, but the tire will bulge out a bit, and sidewall support will be a bit lacking, so steering feel, reaction time will suffer a bit as the car's reaction feels a little more rubbery. For a street car, I wouldn't bother la. Just stick with 205/50/16 bah la.

If you want to use 225/50/16, 16x8 is the size you want, although 16x7.5 would be acceptable as well. But the problem is, 16" is not a popular wheel size. Selection is a lot better with both 15" and 17".

-Lik

celeron_266

7Jx16 wheels with 205/55/16 tires (323i no sport package)


7Jx16 wheels with 225/50/16 tires (323i sport package)


i guess pretty hard to see the oversize tire bulging at this view...

celeron_266

quoting from http://www.carbibles.com/tyre_bible_pg4.html

A rim that is too narrow in relation to the tyre width will allow the tyre to distort excessively sideways under fast cornering. On the other hand, unduly wide rims on an ordinary car tend to give rather a harsh ride because the sidewalls have not got enough curvature to make them flex over bumps and potholes.

so mr. lik i think you are correct, the distortion of the tires basically cancels the positive effect of the increased footprint from the wider tires, resulting in no increase in cornering ability....

satil

use Yokohama Avid Enviger V for summer and Nokian WRG2 for winter here.
no 'real' all season good in SNOW.

Lik

so mr. lik i think you are correct, the distortion of the tires basically cancels the positive effect of the increased footprint from the wider tires, resulting in no increase in cornering ability....
celeron_266 發表於 2011-7-11 23:55

Minor correction here:

When you go with a wider tire on the same car, the contact patch doesn't necessarily increase in size. However, the shape of the contact patch will change. The thing to keep in mind is that the contact patch is dependent on both the tire size and just as importantly, the weight of the vehicle. In Celeron's case, the vehicle weight change is, for all practical purposes, negligible regardless of whether a 205/55/16 or 225/50/16 tire is used. Since the vehicle weight is the same, the pressure on the tire is the same. With a narrower tire, the contact patch is gonna be longer and skinner (narrower). With a wider tire, the contact patch is gonna be shorter but fatter (wider). So the shape of the contact patch changes, but it is not clear which contact patch has a larger overall area. What would happen though is, the narrower tire should actually have a better longitudinal acceleration (accelerating in a straight line) but poorer lateral acceleration (turning). The reverse would be true with a fatter tire.

Essentially, it's a tradeoff between longitudinal acceleration vs lateral acceleration.

-Lik

celeron_266

i am starting to think with all these precision analyses...they may apply to racing conditions...but everyday use..even with spirited driving style...it wont really make a difference....