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Staggered Wheels vs Straight Wheels
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Staggered Wheels vs Straight Wheels
I’m the proud owner of a 2009 Sdrive 35i..... and absolutely loving the experience 4 weeks in.
I have a probably stupid question about wheel sizes, that hopefully someone can answer.
I’m currently running 326s, as a staggered set, with the following configuration
Fronts - 225/35/R19
Rears - 255/30/R19
The wheels need to be refurbished, and I’ve been thinking of putting some ‘winter’ wheels and tyres on whilst they’re being done, leaving me to use her deeper into the winter.
I’ve been looking around and am looking at 17s or 18s, mostly non staggered. I’m aware that the tyre sizes will change as the rim sizes do.
My question is, if I buy a set of straight wheels and tyres, will they be a straight replacement, or will there be something else i need to consider?
I have a probably stupid question about wheel sizes, that hopefully someone can answer.
I’m currently running 326s, as a staggered set, with the following configuration
Fronts - 225/35/R19
Rears - 255/30/R19
The wheels need to be refurbished, and I’ve been thinking of putting some ‘winter’ wheels and tyres on whilst they’re being done, leaving me to use her deeper into the winter.
I’ve been looking around and am looking at 17s or 18s, mostly non staggered. I’m aware that the tyre sizes will change as the rim sizes do.
My question is, if I buy a set of straight wheels and tyres, will they be a straight replacement, or will there be something else i need to consider?
- Smartbear
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Staggered Wheels vs Straight Wheels
I’d be aware of the size of the front brakes, 17’s might not have enough clearance for the caliper
Rob
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
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Staggered Wheels vs Straight Wheels
All wheels should be straight, or round, depending on how you look at it.
The term you are looking for is Staggered setup vs. square setup.
The term you are looking for is Staggered setup vs. square setup.
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- SteveSmith
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Staggered Wheels vs Straight Wheels
Are you thinking less width at the rear or more width at the front? Neither should cause any issues depending on the severity or the difference.
I’ve gone up an inch front and back and have less rubbing than I did before!
I’ve gone up an inch front and back and have less rubbing than I did before!
28i M Sport - Alpine White / Canberra Beige, 19" M359’s, H&R’s / Eibachs, BMS Stage 1 - 271bhp, Front Splitter, CF Rear Lip, Alcantara Steering Wheel and Brembo 4 pots
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Staggered Wheels vs Straight Wheels
Thanks for the responses.
I guess that’s probably the question I’m asking Steve. I’d figured I’d end up with a set of ‘square setup’ wheels and tyres, in whatever size they come.
Had a look at one of the tyre size calculators on Kwikfit and it gave me several sizes that could fit on the car.
It’s more about what the implications are for putting narrower wheels on the rear I suppose?
I guess that’s probably the question I’m asking Steve. I’d figured I’d end up with a set of ‘square setup’ wheels and tyres, in whatever size they come.
Had a look at one of the tyre size calculators on Kwikfit and it gave me several sizes that could fit on the car.
It’s more about what the implications are for putting narrower wheels on the rear I suppose?
- NickDE
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Staggered Wheels vs Straight Wheels
Check the label in the drivers door frame. It will list the tyre sizes for your car, and from that you can see is staggered or square are ok.
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Staggered Wheels vs Straight Wheels
AFAIK you can fit BMW OEM Z4 17" wheels on the 3.5i.
In the states and other countries 17" square set of wheels was commonplace, in part to get over the MSPORT suspension ride issues..
The calipers on the 3.5i are smaller than the 3.5is.
I'm running asymmetric summer wheels and square winter wheels all 17"
In theory a good supplier of after market wheels should be able to tell whether they will fit or not to your specific model..
In the states and other countries 17" square set of wheels was commonplace, in part to get over the MSPORT suspension ride issues..
The calipers on the 3.5i are smaller than the 3.5is.
I'm running asymmetric summer wheels and square winter wheels all 17"
In theory a good supplier of after market wheels should be able to tell whether they will fit or not to your specific model..
- Smartbear
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Staggered Wheels vs Straight Wheels
I was under the impression 17’s wouldn’t fit the 3.0si, thought the brakes on a 35i would be larger than those?Pbondar wrote: ↑Sun Nov 19, 2017 1:24 pm AFAIK you can fit BMW OEM Z4 17" wheels on the 3.5i.
In the states and other countries 17" square set of wheels was commonplace, in part to get over the MSPORT suspension ride issues..
The calipers on the 3.5i are smaller than the 3.5is.
I'm running asymmetric summer wheels and square winter wheels all 17"
In theory a good supplier of after market wheels should be able to tell whether they will fit or not to your specific model..
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
- SteveSmith
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Staggered Wheels vs Straight Wheels
It depends on the wheel surely?
28i M Sport - Alpine White / Canberra Beige, 19" M359’s, H&R’s / Eibachs, BMS Stage 1 - 271bhp, Front Splitter, CF Rear Lip, Alcantara Steering Wheel and Brembo 4 pots
- Mr Tidy
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Staggered Wheels vs Straight Wheels
There is no problem running a square (or non-staggered) set-up with winters on OP.
My E46 Sport Compact runs 17 inch rims on summers - 7.5J front with 225/45 tyres and 8.5J rears with 245/40 tyres, but a 16 inch square set of 7J rims in winter with 205/55 tyres (which is what SE models had as standard anyway).
I don't know what will work on a 35is, but as has been said you need enough diameter to clear the front brakes - and equally crucial is that the offset (or ET) needs to be somewhere close to original to avoid any rubbing on suspension or wheel-arches.
326 wheels seem to be 8J fronts with ET29 and 9J rears with ET40 so I'd probably be looking for 18s with offsets as close to those as possible.
My E46 Sport Compact runs 17 inch rims on summers - 7.5J front with 225/45 tyres and 8.5J rears with 245/40 tyres, but a 16 inch square set of 7J rims in winter with 205/55 tyres (which is what SE models had as standard anyway).
I don't know what will work on a 35is, but as has been said you need enough diameter to clear the front brakes - and equally crucial is that the offset (or ET) needs to be somewhere close to original to avoid any rubbing on suspension or wheel-arches.
326 wheels seem to be 8J fronts with ET29 and 9J rears with ET40 so I'd probably be looking for 18s with offsets as close to those as possible.
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Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
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Staggered Wheels vs Straight Wheels
The 2012 BMW UK price list shows the 3.5i sold with 17” staggered alloy wheels as standard..
17" light alloy Turbine-spoke style 292
17" light alloy Turbine-spoke style 292
- mr wilks
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Staggered Wheels vs Straight Wheels
Don.t think this is true On Euro cars all the twin turbo 35s have same brakes . Think earlier Se 35i US models may have had discs + calipers from the Na 30i .
If the offsets are right I see no issue fitting 17inch alloys on 35i or 35is whether square or staggered .
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Staggered Wheels vs Straight Wheels
Mr Wilks is correct it would appear...mr wilks wrote: ↑Mon Nov 20, 2017 11:20 amDon.t think this is true On Euro cars all the twin turbo 35s have same brakes . Think earlier Se 35i US models may have had discs + calipers from the Na 30i .
If the offsets are right I see no issue fitting 17inch alloys on 35i or 35is whether square or staggered .
Real EOM for a 2009 US 3.5i Z4
Front brakes
330x24 Disc RH Caliper 34116769094
Rear Brakes
300x20 disc RH caliper 34206786058
Real OEM says for a UK 2012 Z4 model
Front brakes
3.5i
348x30 disc RH caliper 34116773202
3.5is
348x30 disc RH caliper 34116773202
Rear Brakes
3.5i
324x20 disc RH caliper 34206786068
3.5is
324x20 disc RH caliper 34206786068
So if you can fit 17" wheels to a 3.5i then a 3.5is can have 17" wheels too it would appear...
It would appear that you could add the 3.5i/3.5is brake bits to a 4 pot Z4 if you wanter more brakes too?
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Staggered Wheels vs Straight Wheels
Firstly, thanks once again for all of the responses. It’s great to belong to a forum where newbies aren’t ridiculed for asking questions.
I’ve read and reread the posts above, and think that, in summary, there’s nothing preventing me from running my Zed on 17’s.
I’ve been offered a set of alloys from an F30 3 series. They’re a set of 396’s running 225/45/18 tyres. I can see these tyres listed on the sticker inside the door, so the tyres are good.
The wheels are 8jx18’s with an offset of 34. I’m a little confused with the offset requirement. As my current wheels have a staggered offset (ET29 and ET40), when choosing a straight set would these wheels with an ET34 offset be ok, or would I have problems?
Many thanks again in advance.....
I’ve read and reread the posts above, and think that, in summary, there’s nothing preventing me from running my Zed on 17’s.
I’ve been offered a set of alloys from an F30 3 series. They’re a set of 396’s running 225/45/18 tyres. I can see these tyres listed on the sticker inside the door, so the tyres are good.
The wheels are 8jx18’s with an offset of 34. I’m a little confused with the offset requirement. As my current wheels have a staggered offset (ET29 and ET40), when choosing a straight set would these wheels with an ET34 offset be ok, or would I have problems?
Many thanks again in advance.....
Last edited by LeePreston on Mon Nov 20, 2017 10:26 pm, edited 1 time in total.
- SteveSmith
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Staggered Wheels vs Straight Wheels
You might need a small spacer on the front presuming the wheels are the same width.
28i M Sport - Alpine White / Canberra Beige, 19" M359’s, H&R’s / Eibachs, BMS Stage 1 - 271bhp, Front Splitter, CF Rear Lip, Alcantara Steering Wheel and Brembo 4 pots