Large alloys - what is the point?

Large alloys - what is the point?

Author
Discussion

theironduke

6,995 posts

189 months

Wednesday 12th October 2011
quotequote all
Having recently bought a 1980's German barge I've rediscovered the joys of 15's with big fat comfy tyres biggrin

Urban Sports

11,321 posts

204 months

Wednesday 12th October 2011
quotequote all
CommanderJameson said:
Urban Sports said:
Are big wheels useless?
Yes. My car handles and rides better on its 16 inch wheels than it would on, say 18s.

And the tyres are cheaper.

But then, I do like to see a bit of sidewall, me.
Having driven an e90 a few times on 16s mine on 18s drives much better IMO.

My first Honda S2000 was far superior on 17s than it's original 16s, although 18s are supposed to be terrible on them.

Do you really think big wheels are useless, surely it depends on their application?

Makes me wonder how many people who have a BMW or AUDI (etc) with small wheel spec say that they prefer it but would really in truth prefer the higher spec car? I'd wager it on being the majority.

smile

ianwayne

6,302 posts

269 months

Wednesday 12th October 2011
quotequote all
LukeSi said:
It isn't just big wheels which are easily curbed, the Panda only has little 15 inch alloys but the finish is that crap if you even so much as park within a 10 feet of a curb it marks them.
I've got a Panda and it's got 13" wheels. Standard fit, 155/80 tyres.

I considered getting some alloys but I find the ride a bit jiggly so with 15" wheels that would have to probably be 50 or 55 profile to fit..... I can feel my back aching already.

Urban Sports

11,321 posts

204 months

Wednesday 12th October 2011
quotequote all
bmw535i said:
Urban Sports said:
v8will said:
With the exception of being needed to fit over huge brakes on some cars it's all style over substance.

Ever seen an E90 on 16" wheels?
They look shyte, the ones with the bigger wheels look much better.
Perhaps this was the point he was trying to make...........
No st

thinfourth2

32,414 posts

205 months

Wednesday 12th October 2011
quotequote all
Urban Sports said:
Makes me wonder how many people who have a BMW or AUDI (etc) with small wheel spec say that they prefer it but would really in truth prefer the higher spec car? I'd wager it on being the majority.

smile
The wifes honda accord was much better to drive and be in with the smaller poverty wheels we ran during the winter



chriscoates

791 posts

161 months

Wednesday 12th October 2011
quotequote all
Most people will happily take the generally poorer ride (especially on M sports, S-lines etc) for a much better-looking car.

A3s are good examples:




I know which one I'd rather have.

Frog Dog

30,341 posts

161 months

Wednesday 12th October 2011
quotequote all
Bigger wheels = higher spec = you spent more money on your car. wink

Anything above 18 inch is just silky though.

anonymous-user

55 months

Wednesday 12th October 2011
quotequote all
Patrick Bateman said:
At what age do you start to become overly concerned with a harsh ride?

No pun intended.
58

Urban Sports

11,321 posts

204 months

Wednesday 12th October 2011
quotequote all
thinfourth2 said:
Urban Sports said:
Makes me wonder how many people who have a BMW or AUDI (etc) with small wheel spec say that they prefer it but would really in truth prefer the higher spec car? I'd wager it on being the majority.

smile
The wifes honda accord was much better to drive and be in with the smaller poverty wheels we ran during the winter
What about the rest of the year?

oobster

7,101 posts

212 months

Wednesday 12th October 2011
quotequote all
Frog Dog said:
Bigger wheels = higher spec = you spent more money on your car. wink

Anything above 18 inch is just silky though.
I assume you meant "silly" instead of silky. But then I am approaching 40 so I may be out of touch with the yoof-speak nowadays.

CommanderJameson

22,096 posts

227 months

Wednesday 12th October 2011
quotequote all
Urban Sports said:
Having driven an e90 a few times on 16s mine on 18s drives much better IMO.

My first Honda S2000 was far superior on 17s than it's original 16s, although 18s are supposed to be terrible on them.

Do you really think big wheels are useless, surely it depends on their application?

Makes me wonder how many people who have a BMW or AUDI (etc) with small wheel spec say that they prefer it but would really in truth prefer the higher spec car? I'd wager it on being the majority.

smile
I actually went for the 528i SE because it came with 16" wheels. It's not as if an (at the time) 7-year-old car costing about £6K was a massive "considerably richer than yow" statement.

I've driven an assortment of Fords and Vauxhalls (as hire cars) and the ones that handle best and ride best, especially on the motorway, are the ones on either small-ish alloys or steelies. I drove an E60 530d on 18s and while the ride was good, it wasn't as good as mine.

Aesthetically, I think that "normal"* cars on big alloys have a habit of looking like roller-skates.

Big wheels are simply fashion, IMHO; they have precious little to do with driving. That some cars with big wheels handle well is a tribute to the suspension engineers involved.
*"normal" meaning "not a Lambo or Ferrari or other superdupercar"

LukeSi

5,753 posts

162 months

Wednesday 12th October 2011
quotequote all
ianwayne said:
I've got a Panda and it's got 13" wheels. Standard fit, 155/80 tyres.

I considered getting some alloys but I find the ride a bit jiggly so with 15" wheels that would have to probably be 50 or 55 profile to fit..... I can feel my back aching already.
Mines a 100hp smile

Actually I think the profile is 195/45/R15, and contrary to popular belief the 100hp is far from uncomfortable.

Big Rod

6,200 posts

217 months

Wednesday 12th October 2011
quotequote all
swiveleyedgit said:
Patrick Bateman said:
At what age do you start to become overly concerned with a harsh ride?

No pun intended.
58
42.

I bought my car with 18s on it and got fed up arriving at work with my spine sticking out the top of my head so bought a set of 17s, (originals were 16s). Not a huge difference in diameter but the ride quality is like night and day with little or no discernable difference in handling/roadholding.

Otispunkmeyer

12,610 posts

156 months

Wednesday 12th October 2011
quotequote all
Big rims are ok so long as the suspension has been designed (and typically sophisticated enough, ie expensive) with them in mind. The big rims on jags prove this... Ok not the absolute best ride quality but it's still pretty good.

But take say, the current gen civic and its crummy rear suspension and short, therefore necessary stiffer front suspension and it's horrible. Even with the 16's the ride is quite harsh and road noise loud on all but the smoothest of roads. On 18's it's downright awful and then you can also get 19's on the type r which has even stiffer suspension.

I've heard that is pretty unbearable, mostly for passengers.

shambolic

2,146 posts

168 months

Wednesday 12th October 2011
quotequote all


19s look better but with run flats are a "tad" harsher! Also look to be prone to stress fractures on inside of alloy on rim!!!
As a few lads on Z4 forum have had this now on the 296 wheel(the ones on my car above)!!!!

CommanderJameson

22,096 posts

227 months

Wednesday 12th October 2011
quotequote all
Large alloys + thin spokes =


Puddenchucker

4,108 posts

219 months

Wednesday 12th October 2011
quotequote all
CommanderJameson said:
That some cars with big wheels handle well is a tribute to the suspension engineers involved.
It used to be the case, don't know if it still is, that a car's suspension was developed/optimised around a particular wheel/tyre combination which was usually from the smaller end of its available sizes (e.g. 205/55 R16).
Fitting (optional) larger wheels/lower profile tyres simply increased the unsprung mass and reduced tyre sidewall depth to an extent that the spring/dampers were operating outside of their optimum to the detriment of ride/handling.

In other words a car engineered around and fitted with 18" wheels will, usually, ride/handle better that one engineered around 16" wheels that is then fitted with 18" from the otions list.

Urban Sports

11,321 posts

204 months

Wednesday 12th October 2011
quotequote all
CommanderJameson said:
Urban Sports said:
Having driven an e90 a few times on 16s mine on 18s drives much better IMO.

My first Honda S2000 was far superior on 17s than it's original 16s, although 18s are supposed to be terrible on them.

Do you really think big wheels are useless, surely it depends on their application?

Makes me wonder how many people who have a BMW or AUDI (etc) with small wheel spec say that they prefer it but would really in truth prefer the higher spec car? I'd wager it on being the majority.

smile
I actually went for the 528i SE because it came with 16" wheels. It's not as if an (at the time) 7-year-old car costing about £6K was a massive "considerably richer than yow" statement.

I've driven an assortment of Fords and Vauxhalls (as hire cars) and the ones that handle best and ride best, especially on the motorway, are the ones on either small-ish alloys or steelies. I drove an E60 530d on 18s and while the ride was good, it wasn't as good as mine.

Aesthetically, I think that "normal"* cars on big alloys have a habit of looking like roller-skates.

Big wheels are simply fashion, IMHO; they have precious little to do with driving. That some cars with big wheels handle well is a tribute to the suspension engineers involved.
*"normal" meaning "not a Lambo or Ferrari or other superdupercar"
A bit of a generalisation TBF, I'm not a big wheel fanboy, far from it but some cars do drive better on bigger wheels and obviously some don't.

To say they are useless is a tad silly IMO.

smile

Urban Sports

11,321 posts

204 months

Wednesday 12th October 2011
quotequote all
Puddenchucker said:
CommanderJameson said:
That some cars with big wheels handle well is a tribute to the suspension engineers involved.
It used to be the case, don't know if it still is, that a car's suspension was developed/optimised around a particular wheel/tyre combination which was usually from the smaller end of its available sizes (e.g. 205/55 R16).
Fitting (optional) larger wheels/lower profile tyres simply increased the unsprung mass and reduced tyre sidewall depth to an extent that the spring/dampers were operating outside of their optimum to the detriment of ride/handling.

In other words a car engineered around and fitted with 18" wheels will, usually, ride/handle better that one engineered around 16" wheels that is then fitted with 18" from the otions list.
Unless the car with the bigger specified wheels has the additional suspension upgrade to go with them.

You can't expect to stick 18" wheels on an SE 3 series and expect it to be better, just like you can't put 16" wheels on an M3 and expect that to be better either.

smile

CommanderJameson

22,096 posts

227 months

Wednesday 12th October 2011
quotequote all
Obviously "useless" is a hyperbolic term, used for effect, in this conversation - after all, any wheel is better than none at all.

>doesn't notice all but the deepest potholes, doesn't have problems with tramlining, pays less for wheels and tyres, doesn't need a separate set of winter wheels on his 13-y-o snotter<