tire questions

b12

guys, i'm about to change my tires. currently am using 185/15s. can i change to a size 16 or 17? and if pwede, do i need to change my mags as well?

also, what tire brand do u suggest? yokohama kasi gamit ko ngayon, okay naman but just for options. and yung budget friendly din

salamat

bny888

bridgestone turanza...

shun_sakurai

Of course you'll have to change your wheels if you want bigger tires.

Be warned that changing your car's footwear size introduces errors in your gauges, odometer and trip meters. There's a rule of thumb called "plus-one" sizing, useful to minimize any speedometer errors when changing wheel/tire sizes. For every inch of wheel diameter you increase, you should decrease 10mm from the tread width and decrease 10% of the aspect ratio.

Given a fictional example, if you're currently shod with 185/55 R15s and want 16s, you ought to have a 195/45 R16 tire.

I'm not very well versed with wheels as they've got dimensions and specs of their own (PCD, offset, etc.) but you can check out carbibles.com for more help.

Budget-friendly tire brands are Accelera and Nankang...especially since big-name brands have gotten a little ridiculous in pricing.

Choosing a tire also depends on your priorities. If you just want a tire that reduces road noise and puts a premium on comfort and long tire life, you'll find they're usually good value. I got Bridgestone Turanza GR-80s on my old City four years ago and they were well-suited for the purpose.

If you're the type who wants no-holds-barred grip and performance, prepare to spend a lot of money. Yokohama's Advan Neova AD07 is notorious as a hugely expensive road-legal competition tire. Other brands are Bridgestone's Potenza and GIII series and Goodyear's Eagle F1 line.

step22

nice post! shun_sakurai.
'di ko alam yun...

shun_sakurai

Just so you guys know what the numbers mean on your tire's sidewall, here's an example:

185/65 R14 82H

185 = tire tread width in millimeters

65 = aspect ratio
This is the height of the sidewall as a percentage of the tread width. In this case, the tire sidewall is 65% of 185mm. You do the math.

R = construction, usually R for "radial"

14 = wheel diameter in inches

82 = tire load index
This is an assigned measure of the maximum load a single tire can sustain without blowing up.

H = speed rating
This is an assigned code for the maximum speed a tire can sustain for 10 minutes without destroying itself.

Again, more info can be found on carbibles.com.

asy0000

without changing anything just the wheel diameter, from 15 to 16, would it mean that you are actually running faster than the one being shown in the speedometer? or slower?

shun_sakurai

You can try it for yourself.

Miata.net's Tire Size Calculator Java applet is now pretty famous online for its quick and easy tire size calculations and speedometer error readouts.

http://www.miata.net/garage/tirecalc.html

pia_boren

hi, i just read your post. are you still interested in buying tyres? if so, i have 17's and 18's na brand new. they're Good Year's top of the line brand Eagle F1 for high performance ( i use the same when i race or drift and for my everyday car as well). we also provide factory warranty for the tyres. anyway, if you are still looking let me know. thanks! email me nalang for further inquiries

pia_boren

if you need other sizes i can help you out there too. i can give you 10% off srp on smaller sizes ( 14s-16s) GoodYear has come out with eagle f1's in these specs too.

pia_boren

if you need other sizes i can help you out there too. i can give you 10% off srp on smaller sizes ( 14s-16s) GoodYear has come out with eagle f1's in these specs too.

pia_boren

if you need other sizes i can help you out there too. i can give you 10% off srp on smaller sizes ( 14s-16s) GoodYear has come out with eagle f1's in these specs too.

alex_yuppie

How much is your budget? Try Michelin if you can afford it.

alex_yuppie

How much is your budget? Try Michelin if you can afford it.

shun_sakurai

I knew I got something wrong the first time...

Here's a slight correction on the "plus-one" sizing rule.

For every inch of wheel diameter increase,
- Increase tread width by 20mm (not 10 as stated earlier)
- Reduce aspect ratio by 10%

So let's say you're shod with 195/60 R15 tires---the stock size of a upper-spec 2001-2007 Corolla Altis. If you wanted to trade up to a 16" wheel, you should be getting a 215/50 R16 tire.

I think this should clear things up.

slamm

b12 wrote: »

guys, i'm about to change my tires. currently am using 185/15s. can i change to a size 16 or 17? and if pwede, do i need to change my mags as well?

also, what tire brand do u suggest? yokohama kasi gamit ko ngayon, okay naman but just for options. and yung budget friendly din

salamat

Ditto on what Shun posted...

Also consider the type of driving style you have. If you're after comfort in the daily grind with good grip and wet traction the the mid-range tire models would be good. If you're after performance and exceptional wet traction then (but the thread wear rating won't be as good) then the high-end tires would suffice (albeit costlier).

I'm very comfy with the Bridgestone tires i use... currently using GR-80 Turanzas for my daily drive. Do some tire shopping/rim first as well to canvass on prices before paying up... For what car are you looking your new shoes for?

shun_sakurai

A caveat: sometimes separating good tires from bad ones isn't as easy as looking at the brand alone. Even established brands have ****-ups with some of their models.

A particularly notorious example was Yokohama's S306, which lasted forever but performed pretty poorly otherwise in every aspect. Tsk. And to think that this was the stock tire of the old EK4 Honda Civic SiRs...

Good thing is I don't think the S306s are sold any more.

slamm

shun_sakurai wrote: »

A caveat: sometimes separating good tires from bad ones isn't as easy as looking at the brand alone. Even established brands have ****-ups with some of their models.

A particularly notorious example was Yokohama's S306, which lasted forever but performed pretty poorly otherwise in every aspect. Tsk. And to think that this was the stock tire of the old EK4 Honda Civic SiRs...

Good thing is I don't think the S306s are sold any more.

I've used those S306 tires before and they feel like Advan Neovas when you compare them to the even crappier Goodyear NCT3's ; now that tire is what should be banned (came OEM in a lot of 1600 sedans before)! Poor thread wear, poor road noise performance, hydroplanes on a slight drizzle, poor dry grip, etc...