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DeadSetMonkey
Samba Member
Joined: April 15, 2010
Posts: 532
Location: Denver, CO
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 Posted: Tue Jul 22, 2014 9:46 am Post subject: Spare Tire and Big Brakes |
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Are there any 15in or 16in spare tires that are compatible with big brake kits?
Seems most of the steel spares are not?
I suppose the GW and VC 15in and 16in alloys might be? but kinda spendy for a spare tire?
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'90 Syncro Westy 2.5Subi Turbo, BFGs 215/75/15 Rheins |
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Phishman068
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Joined: February 19, 2007
Posts: 1867
Location: Pittsburgh PA (ish)
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| Posted: Tue Jul 22, 2014 10:01 am Post subject: |
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Well being as you have a syncro, you have to have the exact same spare tire, or you really have no spare tire at all.
In your case, you run 215/75/15 BFG AT's right? So you need one of those, and worked into your tire rotation.
There are rims that fit, but just stating "Big brakes" means almost nothing, as there are several different Big Brake packages, and each will fit different wheels differently.
But yes, Audi/VW 15'' steel rims should fit over some big brakes, as should the Mefro 15'', and perhaps whatever Gowesty's custom steel offerings are.
Something should be available.
Most people with spare wheels on the back want them to be the same rim though....
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http://www.thesamba.com/vw/forum/viewtopic.php?t=559766&highlight=winter+rust
http://www.thesamba.com/vw/forum/viewtopic.php?t=482402&highlight=sunroof+syncro
http://www.thesamba.com/vw/forum/viewtopic.php?t=569774
http://www.thesamba.com/vw/forum/viewtopic.php?p=6864936#6864936
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Jon_slider
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Joined: April 11, 2007
Posts: 5091
Location: Santa Cruz, Crowdifornia
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| Posted: Tue Jul 22, 2014 10:53 am Post subject: |
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Syncros need 5 identical tires (and rims imo)
How to do a 5 tire rotation (Rotate tires at every oil change):
http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=43
"insert the spare in the right rear position at every rotation. Place the [left front] tire... as the spare until the next tire rotation."
About tire pressure difference front and rear:
Note that the silver sticker in the door jamb of a Vanagon Syncro (and also 2wd), lists different tire pressure for front and rear. imo it is Not correct to use same tire pressure front and rear.
Link
For a BFG AT Ko in 215x75x15 on a Syncro Westy on pavement, I recommend 41psi front, 50psi rear. Offroad dirt 20f, 25r. Deep sand 12f 15r
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Last edited by Jon_slider on Tue Jul 22, 2014 11:06 am; edited 1 time in total |
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DeadSetMonkey
Samba Member
Joined: April 15, 2010
Posts: 532
Location: Denver, CO
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| Posted: Tue Jul 22, 2014 11:03 am Post subject: |
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| Phishman068 wrote: |
There are rims that fit, but just stating "Big brakes" means almost nothing, as there are several different Big Brake packages, and each will fit different wheels differently.
But yes, Audi/VW 15'' steel rims should fit over some big brakes, as should the Mefro 15'', and perhaps whatever Gowesty's custom steel offerings are.
Something should be available.
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Hey thanks... good info... but I suppose I need to be more specific... I was asking a general question when I should really focus on a specific one...
I guess what I am really after is a 15in spare tire that has the same brake-fit constraints as the SA Alloy "Starburst" rims
...as seen here:
Someday I'll find a 5th SA alloy?, but until I do so I'd like to have a spare that will work out in the case of a flat tire, etc... and not be the deal breaker for any subsequent brake upgrades... in case I find some bigger front brakes before I find a matching 5th SA Alloy...
With a syncro... I know I will need the same diameter tire... and to rotate them (and with the 4/1 scenario this will mean mount/remounting... to keep the SAs on the van and the spare in the clamshell, and yet still rotate the rubber)...
Maybe I need to send this question to the "big guns" at GW and VC?
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'90 Syncro Westy 2.5Subi Turbo, BFGs 215/75/15 Rheins |
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j_dirge
Samba Member
Joined: August 08, 2007
Posts: 4641
Location: Twain Harte, CA
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| Posted: Tue Jul 22, 2014 11:49 am Post subject: |
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| DeadSetMonkey wrote: |
Maybe I need to send this question to the "big guns" at GW and VC? |
That's probably your best bet...
I was at German Motor Works in Pacific Grove this weekend (Thanks Paul and John!).. and Paul noted that a recent VC big brake kit did not fit behind a 15" Rhein.. where that particular kit used to.
He said, that VC said, the fit is no longer clean and that the new calipers needed some grinding to clear the wheel.
That said, there are several versions of these big brake kits.. and you're probably going to have to do some digging along with some trial and error to get your answer.
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| danfromsyr wrote: |
those are straight line runs with light weight race cars for only 1/4mile at a time..
not pushing a loaded brick up a mountain pass with a family of 4+ inside expecting to have an event free vacation..
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Jon_slider
Samba Member
Joined: April 11, 2007
Posts: 5091
Location: Santa Cruz, Crowdifornia
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| Posted: Tue Jul 22, 2014 12:44 pm Post subject: |
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| DeadSetMonkey wrote: |
| send this question to... VC |
Definite Yes
a couple of options for your current situation
1. carry tools to remove your driveshaft if you need to run a mismatched spare on a syncro.
2. Consider a decoupler so you can run a mismatched spare without removing the driveshaft
3. Consider buying 5 matching rims that fit your big brakes, and sell your set of 4 rims
Of course, yes, if you could just find a matching 5th rim, that would be simpler. I hope you do.
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My Soapboxes: Inflation; Handling; Gearing; Decoupling; Swepco |
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Jake de Villiers
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Joined: October 24, 2007
Posts: 5911
Location: Tsawwassen, BC
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| Posted: Tue Jul 22, 2014 1:06 pm Post subject: Re: Spare Tire and Big Brakes |
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| DeadSetMonkey wrote: |
Are there any 15in or 16in spare tires that are compatible with big brake kits?
Seems most of the steel spares are not?
I suppose the GW and VC 15in and 16in alloys might be? but kinda spendy for a spare tire? |
I have a 15 x 6 Mercedes Benz steelie for my spare wheel. It fits over the Volks Cafe Audi brakes just fine.
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ThankYouJerry
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Joined: September 01, 2012
Posts: 2271
Location: Shakedown Street
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| Posted: Tue Jul 22, 2014 1:25 pm Post subject: |
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GW just released new 16" steel wheels this month that probably work. Call em.
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DeadSetMonkey
Samba Member
Joined: April 15, 2010
Posts: 532
Location: Denver, CO
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| Posted: Tue Jul 22, 2014 3:17 pm Post subject: |
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| Jon_slider wrote: |
Of course, yes, if you could just find a matching 5th rim, that would be simpler. I hope you do. |
I am hoping that 6.5x15 SA Alloys and a 6.5x15 steel wheel all fitted with the same tires would prevent VC/driveshaft problems? until i find a 5th SA alloy?
Or, do you think that a non-matching wheel with a matching tire, will lead to trouble?
I suppose it is possible the original syncro came with 5 matching 14in alloys... not 4 matching alloys and a steel spare... for a reason?
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----------------------------------------------------
'90 Syncro Westy 2.5Subi Turbo, BFGs 215/75/15 Rheins
Last edited by DeadSetMonkey on Tue Jul 22, 2014 4:51 pm; edited 1 time in total |
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Jon_slider
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Joined: April 11, 2007
Posts: 5091
Location: Santa Cruz, Crowdifornia
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| Posted: Tue Jul 22, 2014 3:35 pm Post subject: |
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| DeadSetMonkey wrote: |
I am hoping that 6x15 SA Alloys and a 6x15 steel wheel all fitted with the same tires would prevent VC/driveshaft problems? |
Sounds good, because they are the same width and diameter.
IF the tires have the same amount of wear (no more than 5000 miles difference)
IF both rims clear your big brakes, and
IF both rims use the same nuts (or you carry the correct nuts for the spare).
iirc the stock steel 14 is 5.5" wide, the stock alloy 14 is 6" wide. It makes sense that a Syncro would have 5 matching rims, so they can be rotated in a 5 wheel rotation.
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