Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB
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Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   GR86 General Topics (2nd Gen 2022+ Toyota 86) (https://www.ft86club.com/forums/forumdisplay.php?f=97)
-   -   Lightest Stock Size Wheels (https://www.ft86club.com/forums/showthread.php?t=148900)

Lelandjt 02-22-2022 03:28 AM
Lightest Stock Size Wheels
 
I'm looking for the lightest wheels with the exact same width and offset as the stock 17s. Feel free to list 18s too for anyone looking for those. This doesn't seem like a difficult find but searching through old posts some wheels are no longer available and others are 8" wide or slightly different offset. Coming up empty searching retailers too. Am I being silly wanting exactly 48mm offset?

I just want bronze wheels that are lighter than stock but don't change the tire shape or suspension geometry.

Jianlun 02-22-2022 03:43 AM
Rpf1 17x7.5 et48 silver 6.93kg 3797758048SP
Rpf1 17x8 et45 gold 7.1kg (tyre rack), 7.3kg (oem brochure) 3797808045GG
Tc105x titan 17x7.5 et45 6.8kg
OZ Alleggerita HLT 17x7.5 et48 7kg W0182320176
BBS RF 17X7 et48 6.4kg
BBS RF 17X7.5 et48 6.6kg
Ce28n 17x7.5 et50 6kg
Ce28sl 17x7.5 et48 6.8(unconfirmed)kg
Ssr gtf01 17x7.5 et48 7kg (potentially discontinued?) Sgd630
Advan tc4 17x7.5 et45 7.5kg sgd537

stock is 7.5 et48 so i exercised some +/- hahaha.


your best bet is OZ Alleggerita, many colours avail in tire rack.

Lelandjt 02-22-2022 04:02 AM
I thought stock is 7" wide. It seems like offsets between 43-50mm are okay.

dragoontwo 02-22-2022 08:46 AM
Quote:
Originally Posted by Lelandjt (Post 3506370)
I thought stock is 7" wide. It seems like offsets between 43-50mm are okay.
The 2nd gen cars are 7.5" stock. That being said, the Alleggerita in 17x8 are under 16 lbs.

timurrrr 02-22-2022 02:52 PM
Quote:
Originally Posted by Lelandjt (Post 3506367)
I'm looking for the lightest wheels with the exact same width and offset as the stock 17s. [...] others are 7.5" wide or slightly different offset. [...] Am I being silly wanting exactly 48mm offset?

I just want bronze wheels that are lighter than stock but don't change the tire shape or suspension geometry.
Yes, changing the offset to a lower value won't hurt if you're only changing it slightly (et45? maybe even et40?). If anything, it will improve how the wheels fill the wheel arches.

As others have already pointed out, gen.2 stock wheels are 7.5" in width.
Won't hurt to consider 17x8 either. It will also be better for 225/45R17 tires when inevitably you change your tires from stock.

Also note that stock Primacy HP look narrower than many other tires in the same dimension.
225/45R17 SX2's will look less stretched on 17x8 than stock tires are on stock wheels.

AndyRC 02-23-2022 01:31 AM
Quote:
Originally Posted by Lelandjt (Post 3506367)
I'm looking for the lightest wheels with the exact same width and offset as the stock 17s. Feel free to list 18s too for anyone looking for those. This doesn't seem like a difficult find but searching through old posts some wheels are no longer available and others are 7.5" wide or slightly different offset. Coming up empty searching retailers too. Am I being silly wanting exactly 48mm offset?

I just want bronze wheels that are lighter than stock but don't change the tire shape or suspension geometry.

How about these

https://www.toyota.com/content/dam/t..._Ebrochure.pdf

Slightly wider fitment by 5mm but Toyota are recommending it and only 17lbs , I’ve not seen a part number yet but look the same as the TRD ones sold for the GT86

Lelandjt 02-23-2022 04:17 AM
Thanks for the suggestions guys. It's weird that all my searches came up with 7.0" width for the 2nd Gen.

daiheadjai 02-23-2022 06:28 PM
For the price and the weight, it's pretty hard to beat RPF1s...

timurrrr 02-23-2022 06:36 PM
Quote:
Originally Posted by daiheadjai (Post 3506688)
For the price and the weight, it's pretty hard to beat RPF1s...
Konig Hypergram?
It's cheaper right now, and might be stronger.
Haven't compared the weight though.

Varelco 02-24-2022 11:56 AM
You limit your options trying to keep the same offset. One of the lightest wheels available...

17x8 ET42 TWS T66-F 13.93 lb

These are labelled specifically for 86/BRZ fitment

https://www.tws-forged.com/tws_t66-f.html

Lelandjt 02-24-2022 12:41 PM
Quote:
Originally Posted by Varelco (Post 3506824)
You limit your options trying to keep the same offset. One of the lightest wheels available...

17x8 ET42 TWS T66-F 13.93 lb

These are labelled specifically for 86/BRZ fitment

https://www.tws-forged.com/tws_t66-f.html
Yeah, I realize now it's okay to go down to 41ish offset, but I wouldn't go higher than 48. That's a very light suggestion!

timurrrr 02-24-2022 04:00 PM
May I ask why you need lightest wheels possible?

Are you ok to potentially sacrifice the strength of the wheel just trying to chase down the mythical "lightest wheel = fastest acceleration"?
Are you really going to feel the difference of a few % worth the risk of bending the wheel on every pothole?

lostinmysenses 02-24-2022 05:17 PM
Quote:
Originally Posted by BlkTrax (Post 3506389)
https://enkei.com/shop/wheels/racing/rpf1/

Part# 3797758048 Finish - SP Size 17x7.5, ET+48 Bolt- 5x100 Bore -73 Weight (lbs)- 15.25

^^^ Fits your request for the Exact same Dimensions of the OEM wheel. Paint or Powder coat to color?

This is the Lightest Wheel for SCCA Solo Street Class I've been able to find ; that is widely available, and not a one off, or overpriced (less than $300) unobtanium.

I sent an email to APEX To see if they would make a Specific Auto-X Wheel, 17x7.5 +41 that's Hub-centric and hopefully lighter than the RPF1, They were looking into it, was the response.

OEM Wheel(s) 17x7.5, 18x7.5 +48
Ideal Street Class wheel - 17x7.5 +41 with 225/45-17 Tire

2022 Street Class Rules:
Any type wheel may be used provided it complies with the following:

A. It is the same width as standard and as installed it does not have an offset more than ±7.00 mm (±0.275”) from a standard wheel for the car.
The resultant change in track dimensions is allowed.

B. Wheel (rim) diameter may be increased or decreased 1” from the standard part. This change may be applied to the front, rear, or both axles.
What are the advantages of running a +41 offset vs +48? Does it have any effect on handling characteristics?

timurrrr 02-24-2022 05:46 PM
Quote:
Originally Posted by lostinmysenses (Post 3506924)
What are the advantages of running a +41 offset vs +48? Does it have any effect on handling characteristics?
Slightly wider track => slightly less lateral weight transfer in corner => slightly more grip.
Also slightly compromised suspension geometry => slight negative impact on steering feedback.
Also arguably better esthetics.


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