Performance Benefit of Bigger-Sized Rims?

last SG · 2007-06-07T21:20:41+00:00

err, tires dun run on air den run on wad? sorry, my notion of "dummy" is that its there but it doesn't serve any purpose. if u have a spare tire of the same...

TheDream SG

Other than more chio, the FC is higher for bigger rims. I'm thinking, is there a performance benfit of having bigger rims? Confused

n0x SG

bigger rims = lower profile tyres = less distortion of tyre walls when cornering = bigger handling….

iceFatboy SG

but I hear more fuel consumption..

the Bear SG

higher stresses for your axles = more probability of catastrophic failure

aku1b0d0 SG

Yeah, coz the mass of rim is higher than the tyre itself...

tomsss SG

also, low profile tyres = damage to the rims in a event of a tyre blowout while driving, unless its on runflats.

HolySniper SG

low profile tires cannot take big potholes.. Laughing

alleggerita SG

Bigger rims = higher FC

So I see no point..unless you are planning to take all corners at high speed, if not no point leh..lol..

Low profile tyres also troublesome, more unstable than a normal tyres in an event of a blowout, but like tomsss pointed out, if it's run-flats then nevermind..haha..and low profile tyres means very easy to kerb your big rims.. Mr. Green

tomsss SG

so dun be suprised to see a lambo or ferrari with scratched, scruffed or even chipped rims Laughing

TheDream SG

Thanks to all! If I can summarise:

Bigger rims, other than more chio, mainly for better handling when cornering at higher speeds.

The downside:
- Higher FC (cos rims are heavier than tyres)
- Higher stress to axles
- Cannot take big potholes
- Higher likelihood to scratch the rims
- If blowout, rims are more likely to be damaged, unless run-flats
http://en.wikipedia.org/wiki/Run_flat_tires

Thanks! I've learnt something today! Very Happy

alleggerita SG

Oh..forgot to tell you another thing..changing to big rims will make the ride of the car deteriorate..ride become uncomfortable..lets say there are 2 Corollas, one with 15-inch rims, another with 18-inch rims, the 15-inch one will be more comfortable.. Wink

sir_boris SG

i'm curious which one will you have on your ride after much exploration....will it be the smallest eg 12"? or a big 18"? Wink

Vigelic SG

same reason why pple put those high spoilers at the back..

alleggerita SG

heheh..agreed..absolutely pointless.. Laughing

n0x SG

yeah... even more so... i think its totally absurd when those SUVs have low profile tyres... i mean.. isnt it suppose to be an off-roader.... even if it is not.. if u are gonna be cornering so hardly that u need low profile tyres.. ur SUV will flip first... Laughing poseurs...

ditzy SG

Do you see takumi's 86 with the 12K rev limit come with low profile tyres and huge rims? Laughing If takumi doesn't use them, it can't be good for you. Does his car come with huge spoilers? No? Well, ok so its not really right to compare like that.

tomsss SG

passenger cars dun have big enuff wheel wells to fit big big 22inch bling bling rims... only SUVs have, so that's why loh Laughing

TheDream SG

Actually I remember an episode in Stage 5 where he put spoilers on his AE86 and said that he was able to feel that the car was more steady Confused

TheDream SG

My ride actually came stock with 17" rims... Rolling Eyes I was just interested in the technical aspects, and seeing a lot of people wanting to change from 14" or 15" to bigger...

alleggerita SG

Yup..spoilers produces downforce, so more stable..but that's at high speeds then the spoiler will come into effect..haha..i doubt there's really much of an effect at 60-90kmh..maybe at 90km/h (Singapore's highest speed limit) there will be just a tinny-weeny bit of effect..but not enough to make your car feel more stable..so generally in Singapore, spoilers really for aesthetics only..lol..

If you don't mind higher FC, more uncomfortable ride, and more expensive tyres, of course can change to big big rims.. Laughing