Here’s one.

Snow Tires/Wheel Setup

Does anyone know what the smallest diameter wheel you can put on and still clear the caliper is? I would like to get a second set of wheels for my snow tires and some extra sidewall is nice. Also makes it nice when you go to do some SCCA style rallycross ;)

www.grcorollaforum.com

 

not to derail the thread but is there a reason why one prefer 17 over 18 other than for appearance?

 

Yes. Softer ride, and less likely to be damaged by potholes, etc.

If lighter, would improve acceleration.

Probably would be better for rallycross also.

 

you're definitely gaining more sidewall, but not sure how much more added protection there is in the real world.

by increasing sidewall, you're also increasing sidewall flex and decreasing wheel feedback, all else equal.

weights between 17 and 18 will depend on the specific wheel. finding 17s that will fit the GRC brakes will make this even harder of a justification.

if this came with 19/20s like how the FK8 included 20" rubber bands, then i'd be more inclined to downsize. 18s are pretty reasonable and functional. not really flashy.

 

I agree that most 17" wheels will not fit over the brakes.

The 13.5% calculated increase in sidewall shown in the table above is misleading. The tread of the tire and the bead are not really compliant, so the real difference is much more, with the 17" setup probably probably having about 30% or even more height in the compliant part of the tire.
.

 

@centerpunch indeed, and counter intuitively, going from an 18 to a 17 is a bigger difference than going from a 19 to an 18.

And yeah, I totally forgot someone fitted some 17" apex wheels vs5rs, unfortunately they didn't include any other details, or at least I didn't see any.

 

1/2" more sidewall is 1/2" more protection from busted wheels on rough roads. I've seen a kit to drop to 15's advertised but even being able to run 17's would let me at least consider using this for TSD rallies.

 

I currently have 17x9 RPF1s on the rear of my MR2. I will have to test fit them when my GR gets here.

 

Dunno if that would work with the MR2 bolt patterns unless you've done a hub swap?

 

Thinking out loud, if a person went for a 17x9 wheel (like the Apex 17" VS-5RS) compared to the 8.5" width of the stock wheels, the 17x9s would probably match best with 245/45 tires, yes? Or would a person stay with 235/45?

Likewise, on 17x8 wheels, those may match best with 215/50 tires? My math says 225 is pretty wide for an 8" wheel.

 

There’s no hard rule for tire width and wheel width. The tire manufacturer have a wheel width tolerance range. For example, 245 can fit and slim as 8 or as wide as 9.5. Check TireRack.com for these ranges.

 

I’d be interested in this for running a drag wheel setup but the fronts will be the biggest challenge for sure.

 

I’m curious what motive or ekanoo run but I haven’t looked at all

 

Here's a link to the 17" winter setup I'm running right now on my car.

GRC Wheel Fitment Image & Measurements Reference...

I already posted mine in another thread. The sizes are almost the same as the stock. The only exception is the wheel width. Tire: Michelin CrossClimate2, 235/40R18 Wheel: Motegi Racing MR154, 18x8 +30 I'll see how soft the sidewalls feel, for the CC2 is a GT tire, not performance. But it...

www.grcorollaforum.com

Some additional pics of the calliper clearance:

 

I have really typical jdm 17's in a really typical size that I can throw on the GRC when I get mine. should give a really good estimate of what's reasonable

 

Someone please give this man a car. I need to know which 17" wheels can fit!

 

for your efforts:

 

i'm going in raw

 

depends on what offset your 17" wheels have
5mm-15mm spacers should fix the brake clearance issue.

And, don't be scared of using spacers, Toyota put spacers on your car already. As long as you use hubcentric good quality ones and have 8 turns of thread engagement of your lugnuts.

 

barrel design will determine whether spacers will get you there or not.

with spacers you need to be aware of the stud length, and potentially change those to have a safe number of threads for the lugs to attach.

 

some 17" have barrel clearance as if was 16" so yeah that happens, but 90% of wheels for racing purposes are true to size

 

Hey everyone, I wanted to drop in on this thread as we've had the chance to test some 17" wheels on this car.

17x10" ET48 Satin Bronze VS-5RS
255/40-17 Yokohama A052
5mm Front Spacer
(Factory) 10mm Rear Spacer​

Naturally, when we got our hands on one of these we tried to test anything we had access to and could think of. The wheels we have here are actually intended for Honda S2000s, but we were curious as to how 17s would fit on the car. Admittedly, some of us here at Apex (it's me, I'm some of us) felt like the 17s look too small on the car. They did however clear factory brakes and the spacer up front is simply to prevent rubbing the inner tie rod at full lock.

The amount of tire these cars can fit stock is mind blowing. We've test fit 10-inch wheels with ET40 offsets and they fit just fine with zero modifications or spacers. Of course, not everyone is going to be going straight to the widest wheel they can find, but so far it's definitely looking like brake clearance is the concern compared to suspension or fender clearance.

Hope you all find this useful!

- Matt

 

17x10" ET48 Satin Bronze VS-5RS
255/40-17 Yokohama A052
5mm Front Spacer
(Factory) 10mm Rear Spacer​

Do you know if there are plans for a 17" wheel group buy via GangUp anytime soon?

 

Thanx for the pictures and useful info.

 

FYI Tire Rack now shows several 17" options. Most are 9" wide.

I might get a set of 17's for rallycross and winter use- I think my ideal preference would be 17x8, with 225/50-17 tires, a tiny bit taller than our stock tires. (With 9" wheels, probably have to do 235/45 or 245/45 tires.)

The only 17x8 they show are some heavy and hideous Black Rhino Arches.

https://www.anrdoezrs.net/click-100...jsp?&autoMake=Toyota&autoModel=GR+Corolla&autoYear=2023&autoModClar=235%2F40-18

 

FYI Tire Rack now shows several 17" options. Most are 9" wide.

I might get a set of 17's for rallycross and winter use- I think my ideal preference would be 17x8, with 225/50-17 tires, a tiny bit taller than our stock tires. (With 9" wheels, probably have to do 235/45 or 245/45 tires.)

The only 17x8 they show are some heavy and hideous Black Rhino Arches.

https://www.anrdoezrs.net/click-100...jsp?&autoMake=Toyota&autoModel=GR+Corolla&autoYear=2023&autoModClar=235%2F40-18

Did you end up buying a rally set of wheels and tires, if so would you mind sharing thanks

 

I got this information from Braid directly inquiring about a 17" winter setup

While we haven't supplied for a GR Corolla Europe has supplied these for the GR Yaris which is supposed to have the same brake package:

FULLRACE A 7x17 ET +40
FULLRACE A 8x17 ET +35

If these fit then a lower offset certainly would to match the stock offsets and run the spacer. Probably best for vehicle dynamics.

Can run narrower tires, which is advantageous in snow and ice. The stock overall diameter is 25.4" so could use:
235/45-17 at 25.3"
225/45-17 at 25"
205/55-17 at 25.9"
205/50-17 at 25.1"

 

I got this information from Braid directly inquiring about a 17" winter setup
While we haven't supplied for a GR Corolla Europe has supplied these for the GR Yaris which is supposed to have the same brake package:
FULLRACE A 7x17 ET +40
FULLRACE A 8x17 ET +35

SCCA rallycross stock class rules allow a 1" change in diameter, a 1/2" change in width, and a 10mm change in offset.

So the 8" above might be a good choice. Assuming they fit. And 225/50-17 still seems like the right size for me at 25.9" dia.

Braid's dealer list seems pretty sketchy- mostly Porsche places that don't even mention selling wheels. This dealer looks like they might actually be interested in selling wheels.

BRAID Wheels

All BRAID Wheels are made to order, meaning we do not have any wheels "in stock" at any given time. If you would like to purchase a set of BRAID Wheels, most orders are manufactured to your specifications, and delivered to you in 3 - 6 weeks.

teamilluminata.com

 

Not really interested in buying wheels for my Toyota from a shop that does 99% of their business in Porsches.

(Nothing against Porsches, I've had nine.)

 

Still searching for a cheaper bomb-proof 17" option but Braid wheels are noticeably lighter than the O.Z. options. Apex wheels are beautiful but the shit streets and gravel here may tear them up

• Braid FullraceA 17x8 - 20lb
• O.Z. Rally Racing 17x8 - 25lb
• O.Z. Superturismo 17x8 - 22lb

Correct me if weights are off, tough to find this information online

 

Good old RPF1'S are like 16-17lbs in the 17x9 size

 

Also, someone said the rpf1 won't clear the calipers.

Of course, that person just said 17", they didn't include width, or offset. They could have tried to fit some 17x7.5 48 offset for all I know.

 

Also, someone said the rpf1 won't clear the calipers.

Of course, that person just said 17", they didn't include width, or offset. They could have tried to fit some 17x7.5 48 offset for all I know.

When I had RPF1's it was the diameter of the inside of the barrel that was really close to the calipers, not the backside of the face. Width and offset wouldn't have changed that.

 

 

Evo 9 MR BBS 17's (17x8 +35mm) do not fit, the caliper contacts the barrel