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Discussion Starter · #1 ·
Has anyone put spacers on a 718 with 20" wheels?
 

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21 Boxster GTS 4.0 - Night Blue
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H&R 7mm front 15mm rear
Does that give no poke on the front and a little poke on the rear? I've read some like 7 and 7 so the rear doesn't poke too much (or at all)

Had em on my M4 and totally changed the look, and it does on yours too (awesome look) - think I'm sold
 

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2018 718 Cayman
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31 Posts
I put 10MM all around on my stock non PASM 718 and it looked great. When I lowered mine, those no longer looked good so I switched to 7MM and 15MM, those are about perfect.
 

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21 Boxster GTS 4.0 - Night Blue
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My questions is will spacers made for a 981 fit the 718? Seems to be more choices for the 981 and the specs (bolt pattern, bore etc.) seem to be the same
 

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21 Boxster GTS 4.0 - Night Blue
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379 Posts
In addition to the 981 / 982 compatibility question, have any of you guys with spacers noticed a handling change (positive or negative)?
 

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21 Boxster GTS 4.0 - Night Blue
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OK, so to answer my own question (and hopefully save others some hassle). I contacted RennSport and asked if the spacers for a 981 fit a 982. He said they did, so I bought 7mm Front and 10mm Rear. What I have now learned:

It seems most 718s do have the same hub configuration (3 "fingers" on the hub centric portion) as a 981 (I assume they are the same, but I have no first hand experience here)

BUT...

It seems the GTS 4.0 / GT4 / Spyder have a different hub configuration (5 "fingers" on the hub centric portion), and I am not sure if that is shared with a specific 911 model or unique to these 3 cars.

So, before ordering spacers, check your hub configuration, and note that typical spacers won't fit these cars

What I believe is the typical 718 hub design
Wheel Tire Automotive tire Automotive lighting Crankset



GTS4.0 / GT4 style
Wheel Locking hubs Automotive tire Vehicle brake Alloy wheel
 

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2018 718 Cayman
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I have buddies with both a 991.2 and the new 992 Carrera and I can tell you the 991.2 has the same 3 finger hub as my base 718. However the 992 has the 5 finger hub that is shown above for the GTS4.0 / GT4.
 

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21 Boxster GTS 4.0 - Night Blue
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379 Posts
Yep, confirmed this with 4wheelspacers.com today (992 / 718 4.0 are same hubs). Think I will go with either 5f / 8r or 8f / 10r
 

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21 Boxster GTS 4.0 - Night Blue
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Still mulling over what negative impacts the spacers may have on scrub radius. Does anyone know what the 718 (non GT) car's scrub radius is?
 

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2022 Spyder GT Ag
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Still mulling over what negative impacts the spacers may have on scrub radius. Does anyone know what the 718 (non GT) car's scrub radius is?
I tried to find that and wasn't able to. Sounds like a very good thing to figure out!
 

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21 Boxster GTS 4.0 - Night Blue
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Yea, I have been looking but no luck yet. I may try to figure out a way to measure it myself. This article explains it from a tire dealer perspective (and is a good read).

I suspect we have a negative scrub radius, and if it is only a few millimeters, then going 5-7mm more could be a negative impact on overall feel at "more extreme attack vectors". It is obvious some folks here run 7mm up front and seem to like them, but I love the way the car handles now, and even high speed threshold braking on rough-ish roads she stays straight and predictable...
 
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