Carrying skinny spare on the back door

Technical questions and answers about the Mazda Bongo

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langtoftnick
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Carrying skinny spare on the back door

Post by langtoftnick » Tue Jun 20, 2017 2:31 pm

Can this be done? Anyone done it? Anyone recommend a bracket manufacturer?
Issues with number plate, lights? Uprating door gas struts????

I did search the fora but couldn't find anything.. maybe it's so easy no one has had to ask anything before!


Thanks guys and gals.

Nick
Bob
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Re: Carrying skinny spare on the back door

Post by Bob » Tue Jun 20, 2017 2:35 pm

I'm pretty sure long standing friend of the Forum Simon Jones has done this.

He got back in touch just recently so with luck he will be along to help, otherwise just click his profile and search all his posts. :)

Edit:

http://igmaynard.co.uk/bongo/forum/view ... or#p646539
Tough times don't last, tough people do. 8)

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Simon Jones
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Re: Carrying skinny spare on the back door

Post by Simon Jones » Tue Jun 20, 2017 6:55 pm

Aye, 'twas me. Must admit I nicked the idea from former member Ron Miel and tweaked the design a bit. Will be at the Bash with wheel fitted if anyone wants to see it in action.

It's a modified pair of trailer spare wheel mounting brackets which clamps round the ladder rung which is covered in a piece of coolant hose.

You will need some extra support to take the weight as the gas struts won't hold it up. I use some round plastic conduit with a split cut to allow it to sneck over the strut.


Image

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Bob
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Re: Carrying skinny spare on the back door

Post by Bob » Tue Jun 20, 2017 8:26 pm

Bear in mind the age of the tyres.

I've an idea Simon managed to get hold of a new skinny, but the originals will be 20+ years old, and all that time in the road muck under a Bongo. :?
Tough times don't last, tough people do. 8)

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langtoftnick
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Re: Carrying skinny spare on the back door

Post by langtoftnick » Tue Jun 20, 2017 9:54 pm

Thanks everyone.... Shame I don't have a ladder! Also looks like obscures a lot of the rear window. Shame the bak rak is so huge and ugly... And then covers the number plate...

Thinking cap on time.
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Re: Carrying skinny spare on the back door

Post by Bob » Tue Jun 20, 2017 10:45 pm

Tough times don't last, tough people do. 8)

https://m.youtube.com/watch?v=hcF9JSxkUSE
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Re: Carrying skinny spare on the back door

Post by Bob » Wed Jun 21, 2017 10:26 am

And it popped into my head that you would be able to fit a full size spare on a rack like this. :)
Tough times don't last, tough people do. 8)

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langtoftnick
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Re: Carrying skinny spare on the back door

Post by langtoftnick » Wed Jun 21, 2017 10:43 am

Had words with bak rak.. they are in the process of marketing a new design which isn't so huge. It apparently just has a stem and a plate which you bolt the spare to which will be much neater.

On the subject of space savers.

The T135/90 R15 has a rolling cicumference of 77.1"
Standard 215/60 r16 has circumference of 82.1"

!

If the skinny was on a 16" rim it would be 80.3" which is -2.3% and even that is outside recommend +/- 1%
So how the hell would anyone ever have used a standard skinny spare for even a mile without shredding their diff?
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Re: Carrying skinny spare on the back door

Post by rita » Wed Jun 21, 2017 11:24 am

The differentials use planetary gears which compensates for different rotation/speeds of the road wheel (hence the name Differential )and if the vehicle is 4WD it uses a Viscous coupling.

Supplying these vehicles with the (Skinny) is designed by the Manufactures of the vehicle and should not present a problem if the recommended use is adhered too.

Good Luck...
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Re: Carrying skinny spare on the back door

Post by Bob » Wed Jun 21, 2017 2:07 pm

Interesting point, but you would think Mazda know what they're about. :?

Standard size is 215/65/15. :wink:
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Re: Carrying skinny spare on the back door

Post by rita » Wed Jun 21, 2017 4:42 pm

Bob wrote:Interesting point, but you would think Mazda know what they're about. :?

Standard size is 215/65/15. :wink:
That's what was said.....

"Supplying these vehicles with the (Skinny) is designed by the Manufactures of the vehicle and should not present a problem if the recommended use is adhered too. :?
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Re: Carrying skinny spare on the back door

Post by Bob » Wed Jun 21, 2017 5:13 pm

I know, I was agreeing with you. :)
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Simon Jones
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Re: Carrying skinny spare on the back door

Post by Simon Jones » Thu Jun 22, 2017 12:02 am

Bob wrote:Bear in mind the age of the tyres.

I've an idea Simon managed to get hold of a new skinny, but the originals will be 20+ years old, and all that time in the road muck under a Bongo. :?
It's same tyre as fitted to Honda Civics so plenty of much younger skinny wheels and tyres available on eBay but the wheel won't fit so you'll need to swap tyre to Mazda wheel. I had mine powder coated to match the alloys and 4 or 5 years on it's still rust-free.
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Re: Carrying skinny spare on the back door

Post by Bob » Thu Jun 22, 2017 12:12 am

That's really valuable info Simon.

Thanks, this will help a lot of peeps. =D>
Tough times don't last, tough people do. 8)

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Simon Jones
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Re: Carrying skinny spare on the back door

Post by Simon Jones » Thu Jun 22, 2017 12:27 am

Worth checking the size as I can't recall what year Civic I bought mine from. If you stick the tyre size into eBay, you'll get a number of matches and the one I got came on a nice yellow space-saver rim which I've still got sat in the garage somewhere.
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