Help selecting alloys for a Fiat Ducato Hymer (1 Viewer)

mike.lamb

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May 31, 2020
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Hymer B668 (2017)
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Hi There,

I have 1 2017 Hymer B668 on a Fiat Ducato base, looking to change the steel wheels to alloys, looking at these:


With these tyres.


Vehicle is plated at 4,500kg and I believe I selected tyres which cover this load rating, looking to validate I haven't missed anything as I haven't bought new wheels before. I'm expecting to order the wheels to my house, tyres to local garage and have them fit the alloys. Any suggestions of the best way to get rid of the steel wheels, are they worth anything?

Thanks!
 
Nov 4, 2011
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Is that tyre size correct seems a bit narrow, my old Fiat based Hymer’s got 215 tyres and would load be enough.
 

Lenny HB

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Oct 18, 2007
53,408
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On the coast in West Sussex
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658
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Since 2008 & many years tugging
Is that tyre size correct seems a bit narrow, my old Fiat based Hymer’s got 215 tyres and would load be enough.
Agree a 2017 Hymer on 16" wheels on a 4500 kg chassis the tyres will be 225 x 75 x 16.

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mike.lamb

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May 31, 2020
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Hymer B668 (2017)
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Thanks - Does that mean the wheels are wrong too? I took a look at the tyres recommended on the alloy wheel site and just used those specs.
 

MikeD

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Dec 21, 2011
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What is the max load on your rear axle as it usually takes more of the gross weight.

Your tyres are rated at 1150kg each and this might not be enough.

I can't find a site that gives the wheel loading either and you should confirm with the maker that it is sufficient.
Did you notice also that the centre hole requires a ring to match the size? I realise it is supplied but will it then be ok for your probably steel original spare wheel and tyre?
 
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mike.lamb

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May 31, 2020
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2500, so seems you're right!

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Jul 29, 2013
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Back axle on our Hymer gvw 4500kg is 2500kg so you need a higher rating I believe something like 116 = 1250 kg and that is just on limit I would go for a little higher to give a bit of reserve.😊 Our tyres are 225 x75 x16
 

Lenny HB

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Oct 18, 2007
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MikeD

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Have a look at this site.

The first alloy wheel in the advert has a load rating (1200kg) for the wheel that would not be sufficient to match your rear axle loading.
The 2nd advert for alutec at 1450kg is. But are these the wheels you are looking at on your original posting?

But they would both be the right size (fitting wise) for your van but not the correct loading.

After market alloy wheels can be a bit of a mine field.
 
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mike.lamb

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May 31, 2020
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Hymer B668 (2017)
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Have a look at this site.

The first alloy wheel in the advert has a load rating (1200kg) for the wheel that would not be sufficient to match your rear axle loading.
The 2nd advert for alutec at 1450kg is. But are these the wheels you are looking at on your original posting?

But they would both be the right size (fitting wise) for your van but not the correct loading.

After market alloy wheels can be a bit of a mine field.

Yes, I believe it is the same (I will call to confirm) - so this would be 1,450 per wheel, i.e. enough to cover the 2,500 axle no problem.

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MikeD

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Yes, I believe it is the same (I will call to confirm) - so this would be 1,450 per wheel, i.e. enough to cover the 2,500 axle no problem.

As far as I understand the advert I posted they stated 1450kg per wheel so would cover the max axle loading. (y)
 

SandraL

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Jan 24, 2012
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I dont know if you have a garage, but our hymer b694 back axle was originally 2400kg, we originally upped it to 2500kg. But with scooter in garage and other kit we were just over 2500 kg so no leeway, then upped again to 2700kg. This involved air assist on rear alko chassis.

If you are changing wheels and tyres might be worth considering if 2500 kg on rear axle is ok for your future needs. We went with 121 load rated tyres.
 
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mike.lamb

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May 31, 2020
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43
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Hymer B668 (2017)
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Thanks all - I called wheelbase and confirmed these are 1450kg - those are ordered and once they get here i'll put the order in for the tyres. Now it's light outside I can see the current tyres are also 225.

Appreciate all the help!

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Nov 4, 2011
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Lenny HB recently fitted these and is happy with them.
66F7C652-8B30-46D3-BA6C-DDB92EFE8F7C.png
 
Feb 3, 2013
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Blimey, that's cheap, I paid £106, the best price I could find at the time.

I think i'm correct in saying you've had Toyo H09's before - how do the new Observes compare with the old H09's?

Pete
 

Lenny HB

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Oct 18, 2007
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On the coast in West Sussex
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I think i'm correct in saying you've had Toyo H09's before - how do the new Observes compare with the old H09's?

Pete
No never had them before but after crap Michelin CP's they are heaven. More grip, and such a smooth ride & quiet.
I went for them because other Funsters highly rated the HO9's which the Observe is the replacement for.
 
Jun 8, 2019
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Greetings peeps welcome from Bexley

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Feb 3, 2013
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No never had them before but after crap Michelin CP's they are heaven. More grip, and such a smooth ride & quiet.
I went for them because other Funsters highly rated the HO9's which the Observe is the replacement for.

Thanks, I only mentioned it because the tread pattern on the new Observes is totally different to the old H09's which were much more 'blocky', wondering if they will be as good on the slippery stuff.

Pete
 
Mar 14, 2019
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Hi There,

I have 1 2017 Hymer B668 on a Fiat Ducato base, looking to change the steel wheels to alloys, looking at these:


With these tyres.


Vehicle is plated at 4,500kg and I believe I selected tyres which cover this load rating, looking to validate I haven't missed anything as I haven't bought new wheels before. I'm expecting to order the wheels to my house, tyres to local garage and have them fit the alloys. Any suggestions of the best way to get rid of the steel wheels, are they worth anything?

Thanks!
205/75 are low profile which have a different rolling radius from the full size so check the size of the ones on the steel rims as you must ensure that your speedo is not compromised.

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Lenny HB

LIFE MEMBER
Oct 18, 2007
53,408
149,870
On the coast in West Sussex
Funster No
658
MH
Hymer B678 DL
Exp
Since 2008 & many years tugging
Thanks, I only mentioned it because the tread pattern on the new Observes is totally different to the old H09's which were much more 'blocky', wondering if they will be as good on the slippery stuff.

Pete
Probably not, all the winter tyres with blocky treads were directional which I didn't want. I like to swap the spare around to even out the wear.
 

Lenny HB

LIFE MEMBER
Oct 18, 2007
53,408
149,870
On the coast in West Sussex
Funster No
658
MH
Hymer B678 DL
Exp
Since 2008 & many years tugging
205/75 are low profile which have a different rolling radius from the full size so check the size of the ones on the steel rims as you must ensure that your speedo is not compromised.
OP has already said his tyres are 225, it was his eyes guv.

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Jul 29, 2013
9,069
18,496
Salisbury
Funster No
27,215
MH
Hymer B678DL A class
Exp
since 2011
We have alloys on ours and handbook says bolts are same for steel or alloys😊
 

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