wheel / tire sizes and range

[tmrqs]

It's not about not wanting the best of both worlds, but people making strange choices for the sake of a few miles of range, such as picking the most efficient rims as opposed to the rims that look the best. People have never done that for ICE cars, yet wide tyres on ICE cars have the same impact on fuel economy as they do on energy useage.

Spot on! But not as simple either.

I think the range concern has more to do with the charging network situation: it is much easier to refill a gas tank than charge a car. More gas stations, everywhere.

People that are not already familiar with EV and/or have driven one, and who for the most part read everywhere that charging sucks and networks are always down, are understandably scared... and therefore make the decisions you mentioned.

I've been driving EV for years, done a bunch of road trips, and for the most part, the situation has drastically improved and I never worry about it anymore (and that was even before getting access to superchargers which make things even easier). It's just a learning curve.

 

[PanameraFrank]

The OEM wheels are heavy, as most OEM tires are. I don't think we have the exact weights anywhere but almost anything aftermarket will be lighter.

How much impact 40ish pounds of unsprung weight has on range, though.. shrug.

As for range, it's the most important aspect of an EV if you're using it for any day or longer trips. Around town, whatever, but it's critically important to be able to hit certain metrics on road trips.

In general 300 miles of 100% range in summer conditions gets you into a much more comfortable spot for road trips. Below 250 and it starts to get really painful. Having longer range allows you to better pick and choose charging stops, more options are better.

 

[krissrock]

i hear you... and I think the information wasn't as available when it comes to ICE cars though... Ppl may have made different choices if they knew...

 

[Throb]

Spot on! But not as simple either.

I think the range concern has more to do with the charging network situation: it is much easier to refill a gas tank than charge a car. More gas stations, everywhere.

People that are not already familiar with EV and/or have driven one, and who for the most part read everywhere that charging sucks and networks are always down, are understandably scared... and therefore make the decisions you mentioned.

I've been driving EV for years, done a bunch of road trips, and for the most part, the situation has drastically improved and I never worry about it anymore (and that was even before getting access to superchargers which make things even easier). It's just a learning curve.

In general 300 miles of 100% range in summer conditions gets you into a much more comfortable spot for road trips. Below 250 and it starts to get really painful. Having longer range allows you to better pick and choose charging stops, more options are better.

Maybe I'm spoiled in Europe, but long distance road trips using 350 kW EVSEs are a breeze. I realise it may not be the same in North America.

 

[JBA]

Another factor to consider is that the 20-inch wheels have 235mm width front tires and 285 rears. Both the 21 and the 22-inch wheels use 255s on the front and 295s on the rear. The narrower tire cross section on the 20s probably makes a difference in aerodynamic drag.

 

[tmrqs]

Maybe I'm spoiled in Europe, but long distance road trips using 350 kW EVSEs are a breeze. I realise it may not be the same in North America.

In the North East of the US, never had issues either. But the US is a big country, I’m sure it’s probably not as simple in the middle of it.

 

[tmrqs]

Another factor to consider is that the 20-inch wheels have 235mm width front tires and 285 rears. Both the 21 and the 22-inch wheels use 255s on the front and 295s on the rear. The narrower tire cross section on the 20s probably makes a substantial difference.

Range/quiet/comfort vs grip/sportiness.
It’s always a compromise.

 

[PanameraFrank]

Range/quiet/comfort vs grip/sportiness.
It’s always a compromise.

I will argue until my dying days that smaller tires generally improve day to day sporty feel. The 20s on my Taycan felt significantly more natural than the 21s. And grip is going to far exceed anything you need with proper tires on.

You get larger wheels for the looks or because you're going to track the car.

 

[Salmonfisher]

Range/quiet/comfort vs grip/sportiness.
It’s always a compromise.

Exactly. I am on the first camp and always ordered the smallest wheels even when I drove ICE cars. I’ve a Polestar at present and if you read reviews it has a terrible ride. If you look at detail they are all on 20 or 21 rims whereas ride is great on 19s

 

[wmras]

[QUOTE="PanameraFrank, post: 263300, member: 667"

You get larger wheels for the looks or because you're going to track the car.

[/QUOTE]

Or because the only wheel style you like is 22”.

 

[Yves]

Well I did stick eith the original 20 inch Turbo wheels, for range but also, I did not find an alternative in the larger sizes that I really liked. Hindsight, I should have gone with the carbon 22 inch and painted them black … Funny thing is the prototype used Audi wheels I think, 20 inch if I would take a guess and I liked them … Porsche wheels design department is great at designing spider wheels but EV designs for the Macan are just plain … the Taycan has some nice ones …

 

[wmras]

nice!! yeah, definitely Forged wheels should be the way to go! I'm looking at a set of Vossen's right now. I'm gonna go for 21's 9" and 11" wide.
How wide are the HRE's?

Here are the specifications as ordered:

HRE 21" Classic Series 303M Wheels
Front axle: 9.5 J x 21 RO 32 Gloss Silver
Rear axle: 10.5 J x 21 RO 25 Gloss Silver
Lifetime Limited Structural Warranty and 2 Year Finish Warranty
Monoblok 1-Piece, Classic 13 spoke with High, Medium and Low face profiles
Aerospace-grade 6061-T6 forged aluminum for high strength-to-weight ratio
ARP high strength stainless-steel fasteners. Ti hardware optional.
OE TPMS and lug hardware compatible for ease of installation
Back pad pocketing is standard to minimize un-sprung mass and rotational inertia for maximum performance and handling
CNC machined to custom specifications for your specific application

 

[Hutchie]

I’ve been driving my Macan 4 for about two weeks. Now that the brakes are broken in and regenerative breaking is on I’m seeing 322 miles with 22” RS wheels. This is in Texas with temperatures in the low 90s and dry conditions. My driving is 70% around town and 30% “spirited” though I tend to keep it in sport plus.

How rough is the ride on the 22" RS. I think they look really great and want them, but concerned about the comfort of the ride and rate of tire wear with the thinner rubber. Any thoughts so far? Thanks

 

[TaraC]

How rough is the ride on the 22" RS. I think they look really great and want them, but concerned about the comfort of the ride and rate of tire wear with the thinner rubber. Any thoughts so far? Thanks

The ride quality is quite nice in Normal. My last daily was a Volvo xc60 on 19s and it rides better than that did. In sports plus the ride quality deteriorates especially on uneven services. On a smooth road you don’t feel much but you do feel the road in sports plus. I would compare it to my old Audi TT on springs.

That said with the exception of my brief time with the Volvo I’ve always driven sports cars and sports sedans so my expectations are tuned to that. The sports plus mode feels like sports car. The normal mode feels surprisingly luxurious and comfortable. Then again if I wanted to float on air I would have bought a Land Rover not a Porsche

I was really nervous when I ordered it now I’m glad I did. If you are going to live daily in sports plus though order the 20s. I don’t mind switching modes for my mood.

 

[krissrock]

Here are the specifications as ordered:

Rear axle: 10.5 J x 21 RO 25 Gloss Silver

how'd you calculate that offset? that's pretty low...

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