Lightweight 18" wheels (lighter than RPF1's)
 

I came across some wheels yesterday while searching for lightweight 18's for my G. My goal is to find a wheel that is lighter than stock while maintaining a "mature, refined" look. I feel like RPF1's don't fit the style of a luxury sedan and I think the styling on these wheels fit much better. It also seems like they should clear the akebono brakes on the G sport model and it's kinda hard to find 18's that will do that.

I was wondering if anyone has heard much about these or has opinions. I especially like the titanium color.

The specs are:

F: 18x8.5, +35mm, 18.1 lbs
R: 18x9.5, +38mm, 18.7 lbs

https://www.super-speed.ca/post/rf03...-in-the-market

https://www.super-speed.ca/flowform-rf03rr

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https://youtu.be/i1TiSid1FTs

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https://youtu.be/IYka2jSXKwg

Seems like more excitement than .2 lbs per wheel warrants, unless you are a professional race team trying to eek the last few 10ths out over the competition.
In that case I doubt you would be running the 370Z. (Let's face it, we love our cars, and they are very capable enthusiast platforms, but there's a reason the pros go with elsewhere for GS and TCR class.)
It is a nice looking wheel, tho.


Kirk B.

Appreciate the reply, friend!

I'm not trying to squeeze every ounce of weight possible, and not competing for anything either. This is purely for personal enjoyment. To an extent, I'm a bit of a min/maxer and if I can boost performance + handling characteristics while at the same time improving the looks of my car, then it's even better.

It's really exciting to me that there's another option that rivals the RPF1's weight yet looks better IMO. Just curious what everyone else thinks because I couldn't really find anyone running these wheels and I'm wondering why. They seem like a great value for their weight, price, and looks.

At just .2 lb difference, I'd just care about price, style preference, and durability.

I do really like their styling and pricing is good.

Why not look at Wedsport TC105X's?

Super light wheels, $2300 per set. Between 17 and 19lbs based on width and offset.

That would be out of my price range, but thank you for the suggestion!

These Superspeed wheels can be bought and shipped for under $1,000 from what I've found..

Before you drop the cash, call the wheel manufacturer and make sure that they will clear the calipers. Most of the time sub $1k wheels can leave much to be desired from a fitment and quality perspective. Good Luck!

It is all fine and good to try to pick the lightest wheel, but one thing people hardly ever consider, is the weight of the tire.



They are not all created equal.

:iagree::iagree:

I've sent them front and rear templates for fitment checks already :tiphat:

I've played with some wheel calculators too and it shows there should be even more room than the stock wheels..

Tires will be Michelin Pilot Sport 4S!

Thanks for the advice man, this is why I've made a thread asking for some opinions and suggestions! It's always best to be cautious.

I would not run those things if you paid me. You have no idea of the wheel integrity. Enkie's are race proven. Don't cheap out. If you want gain some performance by decreasing rotating mass, buy a set of lightweight rotors. Z1 lightweight rotors are about the lightest and will free up 10 lbs per side on the front and 5 lbs per side rear.

Sent from my SM-G965U using Tapatalk

One of the lightest there is as far, as I know.

Well I'm pretty much sold on these after doing more research. But I have some other mod plans that are higher priority so I probably won't be getting wheels for a year or more.

Anyway! After browsing their facebook page, it seems these wheels have been track tested by plenty of people, and there are a lot of people using these wheels with good results:

https://www.facebook.com/superspeedw...nf&__tn__=kC-R

Also this article about how the wheels are made gives me greater confidence in their durability:

https://www.super-speed.ca/flow-form-technology

So I'll be purchasing these when the time comes and I'll make sure to post a review at that time. Thank you everyone for your input! I've decided not to get the titanium and I'm going to go with the Matte Gunmetal for my gray G37. The titanium are just a little too "bling" for me.

I always believe everything I read too.

I'm glad.

If you want a strong lightweight rim. ForgeLine. But you will pay for them.

https://forgeline.com/

Rusty, does OP seem like that kinda dude that's dropping 6k on Forgelines? C'mon, the dude is convinced some knockoff ZE40's are the greatest wheels ever or some **** for his street driven sedan thats never seeing a racetrack

Why the hostility? I don't want this thread to turn into a flame war for a 100% polite question in a public forum. I'm not a cheapass, I spent $20,000 to buy my G37 6MT with 36k miles last year because I waited to find one in superb quality, I have a $1,000 invidia exhaust, $650 hfcs, $500 intake, and there's absolutely nothing wrong with wanting to find a set of wheels that isn't going to cost my entire tax return because people won't get off their high horses and be nice about it. I appreciate all of your opinions, but don't turn this into something negative.

No one ever thinks about ForgeLine. I'm giving OP more options. :tup:

Well, we can start at how absurd it is to think ofreplacing RPF1s, which are commonly used at race tracks everywhere, with a wheel from a relatively unknown origin because they claim to be TENTHS of a pound lighter is pretty hilarious given that your most difficult driving task is probably parking at the grocery store

If you think they're an ugly wheel that doesn't fit a luxury sedan, i could get on board with that. They are ugly AF, but i wouldn't pretend i needed some lightweight wheels to replace them.

and, i'm assuming your car is stock stance and stock body, so really . . . what are we doing here?

Why the hostility? OP didn't claim they are an RPF1 replacement, or that people should be buying these instead of RPF1s, just that he liked that there is a similarly light, and better looking wheel.

On durability:
It's unlikely this wheel will be significantly weaker than RPF1's either, and it uses an I beam spoke design that has been proven in many other reputable wheels to trim weight.

You can typically assume similar strengths at similar weights given the same manufacturing process and reasonable wheel design.

Thank you Dark. I'm sorry, maybe I shouldn't have phrased the thread title the way I did. I wasn't trying to specifically target RPF1's, it's just the #1 wheel that came to mind that I see people saying is like the "golden standard" of a lightweight, affordable 18" wheel.

The purpose of my questions were to be informative to others that there may be a good alternative that actually looks good on the G (according to my own personal opinion). And I wanted to get people's thoughts if they have heard of this brand and if they think it was a good choice. Well, they certainly gave their opinions on that.

I just don't like the people saying that if I'm not taking it to the track, or giving it some specific "stance" then I'm not allowed to enjoy the benefits of a lighter wheel with some spirited driving. Everyone mods their cars for their own reasons. Sorry if it came across like I hate RPF1's or that these wheels are king for weighing less. I kinda just worded it like that to grab some attention and get views.

Or are you just looking for people to validate the decision you've already made? :icon08:

Listen to this man :twocents:

:rolleyes: You're looking at $200 wheels. Don't do it!! :thumbsdown:

Don't take OptionZero's comments personally. He is simply informing you that you are making a dumb decision.

What did you think was going to happen when you compared the "golden standard of a lightweight, affordable 18" wheels" to the crappy knockoff garbage you're looking at? :icon14:

We were just pointing out that your reasoning makes no sense. Don't start talking about weights when that has absolutely nothing to do with your decision to pick these wheels. If you want them for aesthetics, fine. Just know that you are buying cheap wheels.

Okay, thank you for the wisdom everyone. You have changed my mind. I will save up for proper wheels.

Are these in your price range?


http://www.the370z.com/parts-sale-pr...ml#post3931308

Not at the moment but I could very well save up for something like them!

I don't trust RPF1's for excessive track duty. I've seen a lot fail or crack over time when beat on. People run them because they're light, cheap, and replacable when one does fail.

I have a few friends that have broken quite a few RPFs. We've switched to NT-03Ms as they're a bit stronger, almost as light, and cost about the same. Either way, track wheels are pretty much a consumable anyway and should be retired after a bit of use.

Well I ended up buying them. I got an amazing deal on these, $300 plus shipping, because the guy I bought them from had them on his NSX which he just used in promotional videos for Superspeed, so he didn't even use the wheels anymore.

Superspeed RF03RR in titanium finish
18x8.5 +35 front, weight 18.3lbs
18x9.5 +38 rear, weight 18.9lbs

They are made to clear big brakes, but these still barely clear the sport akebonos on the G, it's only a few mm but it's just enough.

Tires are Michelin Pilot Sport 4S 235/45/18 and 255/40/18. I will probably get wider tires when it's time for them to be replaced, but for now I'm using my old tire setup from my stock sport wheels.

I know I need a drop. I'm planning to go with 370z pre-2016 nismo springs to drop it about .5", I'm not interested in going much lower. Now onto some pics!