Wheel max width

Random Caddy chat.
Not the place for sale or wanted topics.
mattdrink73
Caddy2k Groupie
Posts: 18
Joined: Thu Apr 11, 2019 12:20 pm
Engine size/power: 1.6 CR TDI (102bhp)

Wheel max width

Post by mattdrink73 » Sun Apr 28, 2019 1:06 pm

Wondering if anyone can help me looking at some new wheels. I've got a completely stock 2012 1.6 TDI Bluemotion which is currently sporting steelies that I'd like to change to some alloys. Looking at 18's at the moment but I was wondering what the max wheel width/offset combo is that I could go on the stock suspension. Found some nice looking 18x8" with an offset of 35, would these be okay? Cheers

Drew2k
Caddy Fan
Posts: 97
Joined: Mon Aug 27, 2018 6:35 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: Wheel max width

Post by Drew2k » Sun Apr 28, 2019 2:09 pm

Hi,
You shouldn’t have any issues with that size and width but you want to be at 45 offset for a flush fitment I believe.
So with a 35 offset you’ll poke a bit?
I’m running 19x8.5” all round with a 40 offset and have no issues at all with sliding door passing etc.

User avatar
hef355
Hyper Poster
Posts: 892
Joined: Tue Mar 28, 2017 1:02 pm
Engine size/power: 1.2 TSI (84bhp)
Location: Wales

Re: Wheel max width

Post by hef355 » Sun Apr 28, 2019 2:11 pm

Ideal width is 8 to 8.5j, 9j at a push depending on offset and as close to ET45 as possible


Sent from my iPhone using Tapatalk

User avatar
r1lea
Twin Turbo poster
Posts: 467
Joined: Sat Dec 29, 2018 1:23 am

Wheel max width

Post by r1lea » Sun Apr 28, 2019 2:17 pm

The ET will depend on the width
An ET45 8j will sit completely different to a ET45 9j
You have to allow for the width of the rim too
A 9j rim is an inch wider than a 8j so that’s roughly 12mm front and 12mm rear of the rim
Ideal flush fit is 8.5j with ET45
So for instance if you had a 8j rim and wanted the same flush fit you’d want ET39
If you had a 9j rim, to get the same you’d want a et51
Etc etc

Sent from my iPhone using Tapatalk
Last edited by r1lea on Sun Apr 28, 2019 2:17 pm, edited 1 time in total.

mattdrink73
Caddy2k Groupie
Posts: 18
Joined: Thu Apr 11, 2019 12:20 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: Wheel max width

Post by mattdrink73 » Sun Apr 28, 2019 2:21 pm

Cheers everyone. I'll keep an eye out for some with a higher offset then. I've seen a lot of people running Golf and Passat wheels, I presume the weight rating is fine on these, I can't find any official stats for them

User avatar
r1lea
Twin Turbo poster
Posts: 467
Joined: Sat Dec 29, 2018 1:23 am

Re: Wheel max width

Post by r1lea » Sun Apr 28, 2019 2:28 pm

A 8j ET35 would sit 3.4mm further out than the idea 8.5j ET45 Image


Sent from my iPhone using Tapatalk

mattdrink73
Caddy2k Groupie
Posts: 18
Joined: Thu Apr 11, 2019 12:20 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: Wheel max width

Post by mattdrink73 » Sun Apr 28, 2019 2:33 pm

What's considered too much of a poke? I'd ideally like to keep it looking fairly OEM, and obviously be able to open the door, though I've seen people on here saying that a 18x8.5J ET42 is fine, and 18x8J ET35 is only an extra 1mm further out

User avatar
hef355
Hyper Poster
Posts: 892
Joined: Tue Mar 28, 2017 1:02 pm
Engine size/power: 1.2 TSI (84bhp)
Location: Wales

Re: Wheel max width

Post by hef355 » Sun Apr 28, 2019 2:39 pm

Not an expert in this ET business at all and thanks Lea for that interesting insight via that diagram.

Practically and in my experience of fitting various wheels on the caddy you cant go wrong with an 8.5j x ET45 in my humble opinion


Sent from my iPhone using Tapatalk

User avatar
r1lea
Twin Turbo poster
Posts: 467
Joined: Sat Dec 29, 2018 1:23 am

Wheel max width

Post by r1lea » Sun Apr 28, 2019 2:55 pm

If people are running 8.5j et42 with no issues then correct, 8j ET35 should be ok too
But remember if your lowered then tyre profile / width also plays a part


Sent from my iPhone using Tapatalk

skinnyd
100BHP+
Posts: 139
Joined: Thu Feb 14, 2019 5:55 pm
Engine size/power: 2.0 TDI (140bhp)
Location: Durban, South Africa

Wheel max width

Post by skinnyd » Sun Apr 28, 2019 3:02 pm

This was a reply from another thread which I found useful and simple.

19s but what tyre size?
https://r.tapatalk.com/shareLink?share_ ... are_type=t


Sent from my iPhone using Tapatalk

mattdrink73
Caddy2k Groupie
Posts: 18
Joined: Thu Apr 11, 2019 12:20 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: Wheel max width

Post by mattdrink73 » Sun Apr 28, 2019 3:10 pm

Thanks everyone! Looks like I'll most likely end up with some used Golf wheels providing the load rating is okay, there's a few nice looking sets on eBay which all seem to be 18x7.5J ET49, even some with high enough rated tyres

mattdrink73
Caddy2k Groupie
Posts: 18
Joined: Thu Apr 11, 2019 12:20 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: Wheel max width

Post by mattdrink73 » Sun Apr 28, 2019 3:21 pm

skinnyd wrote:
Sun Apr 28, 2019 3:02 pm
This was a reply from another thread which I found useful and simple.

19s but what tyre size?
https://r.tapatalk.com/shareLink?share_ ... are_type=t
Unfortunately I don’t have access to that thread quite yet (still a noob) but I’ll get there soon :D

User avatar
Lister79
100BHP+
Posts: 189
Joined: Fri Jan 20, 2017 8:38 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: Wheel max width

Post by Lister79 » Sun Apr 28, 2019 3:30 pm

If it helps I’ve previously ran 8.5x19 with an ET42 offset, I had no issues at all with rubbing or the side door.


Sent from my iPhone using Tapatalk
2011 White 1.6TDi with EA888 CJX engine
2014 Toffee Brown 1.6TDi
Build thread:
http://caddy2k.com/forum/viewtopic.php?f=13&t=36629

skinnyd
100BHP+
Posts: 139
Joined: Thu Feb 14, 2019 5:55 pm
Engine size/power: 2.0 TDI (140bhp)
Location: Durban, South Africa

Re: Wheel max width

Post by skinnyd » Sun Apr 28, 2019 3:30 pm

mattdrink73 wrote:
Unfortunately I don’t have access to that thread quite yet (still a noob) but I’ll get there soon :D
This is the summary

J-size is the width of the rim, so 8,5J is wider than 7,5J.
For ET: the lower the ET, the more your wheels stick out.
So anything below 8,5J + anything higher than ET45 will not stick out.


Sent from my iPhone using Tapatalk

mattdrink73
Caddy2k Groupie
Posts: 18
Joined: Thu Apr 11, 2019 12:20 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: Wheel max width

Post by mattdrink73 » Sun Apr 28, 2019 11:11 pm

There's only a few mil difference between 8.5J ET45 and the 8j ET35 so I'm guessing they'll be okay, I'll see what I can get my hands on for a reasonable price though

Post Reply