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quickie on wheels
JoelP - 23/10/04 at 07:09 PM

hi all.

Just wondering, when wheels are described as 5jx13", does this mean they are 5 inches wide? or is it more subtle than this?

cheers

colibriman - 23/10/04 at 07:13 PM

Hi Joel......
yep....it means 5".........

what does the J stand for though?

cheers
Colin

Mark Allanson - 23/10/04 at 07:22 PM

13" is measured between the inner rim edges, J is the shape of the rim - I think for radials (!). Different rim shapes only applicable for crossplies and specialist tyres like farm buggies etc?

JoelP - 23/10/04 at 07:23 PM

thats what puzzled me. another set said 7.5jx13". not a clue myself...

cheers anyway col!

cheers mark, i thought that was possible but never knew rims could be different!

[Edited on 23/10/04 by JoelP]

colibriman - 23/10/04 at 07:25 PM

Joel.....
also translates to.....

5J - skinny f**kers

7.5J - fat f**kers

wicket - 23/10/04 at 10:23 PM

Useful wheel & tyre info here:-

http://www.chris-longhurst.com/carbibles/index.html?menu.html&tyre_bible.html

and here:-

http://www.domsat.co.uk/pages/wheels.htm

JoelP - 23/10/04 at 10:46 PM

cheers wicket, good links.

phelpsa - 26/10/04 at 04:20 PM

There is also a b ie. 5b x 10, which I have seen on minis, I think the mini cooper steels are bs.

mackie - 26/10/04 at 05:02 PM

Mazda RX8 has 8JJx18 rims just to make getting new tyres a complete bitch.

JoelP - 26/10/04 at 10:08 PM

i bought a pair of 5j 13 minilite replicas on ebay the other day, to use as front wheels. Gonna look for some 7 or bigger ones for the back. they were only cheap anyway, even if they turn out not to be light. at least i can weigh them and find out!

what im really looking at now is light uprights. Still not read rorty's site (as mentioned by james) about custom making them (beyond me i think...). any one know any off the shelf alloy ones? i saw some for £1200, which might be of an excession...

stephen_gusterson - 26/10/04 at 10:44 PM

how many other people were dissapointed when they read this thread?



atb

steve

Hugh Jarce - 27/10/04 at 05:36 AM

quote:
Originally posted by stephen_gusterson
how many other people were dissapointed when they read this thread?



atb

steve

Yes, I must admit, I envisioned a buxom harlot, arms and legs outstretched, lying on one of those under-car crawlers.

stephen_gusterson - 27/10/04 at 10:10 AM

wow

your imagination is better than mine



atb

steve

phelpsa - 27/10/04 at 12:17 PM

How about westie alloy uprights. They use sierra parts, except escort mk3 front discs, and it means that they can take 13" wheels. They are around £300.

Adam

timf - 27/10/04 at 12:39 PM

quote:
Originally posted by Hugh JarceYes, I must admit, I envisioned a buxom harlot, arms and legs outstretched, lying on one of those under-car crawlers.


you asked

http://www.locostbuilders.co.uk/upload/mechanic.jpg (medium safe for work

[Edited on 27/10/04 by timf]

stephen_gusterson - 27/10/04 at 12:50 PM

there seems to have been a patch of oil dripping on her - she needs to find out where thats coming from!

atb

steve

Hugh Jarce - 27/10/04 at 12:58 PM

Looks like another nasty case of a nipple shearing off from too much abuse!

stephen_gusterson - 27/10/04 at 01:04 PM

there is a bush joke in their somewhere, but thats way too controversial in more ways than one

atb

steve

timf - 27/10/04 at 01:07 PM

quote:
Originally posted by stephen_gusterson
there is a bush joke in their somewhere, but thats way too controversial in more ways than one

atb

steve

steve i 'trimmed' the piccy before i posted it and believe me there are nor bush jokes any where near that photo

JoelP - 27/10/04 at 06:16 PM

quote:
Originally posted by phelpsa
How about westie alloy uprights. They use sierra parts, except escort mk3 front discs, and it means that they can take 13" wheels. They are around £300.

Adam


cheers adam. Does that mean that 13 inch wheels dont fit over sierra front discs? my steel ones do, are alloys different?

JoelP - 27/10/04 at 08:32 PM

off the westie site:

http://www.westfield-sportscars.co.uk/shop/prodtype.asp?PT_ID=70&numRecordPosition=1&strPageHistory=cat&strKeywords=&strSearchCriteria =

these are up to £1111 for AP brakes etc, or 628 with normal brakes. At least they weigh nothing though!

phelpsa - 28/10/04 at 08:33 AM

Sorry, thought you meant rear uprights

Peteff - 28/10/04 at 08:55 AM

They are selling the Raceleda ones. Cheaper than Westfield ones but still not Asda price, complete kit for under £1000 though and they're working on some to replace the Sierra gear as well.
You could put a link to the full picture for the people who aren't at work.

[Edited on 28/10/04 by Peteff]

JoelP - 28/10/04 at 07:06 PM

MNRs look good at 850 inc vat. That kit includes ally hub, upright, and caliper, and steel steering arms and iron discs. Anyone know if the discs have to be iron? i dont mean carbon, just something a bit lighter. I might well be tempted by those.

Peteff - 28/10/04 at 08:15 PM

Bikes use steel with sintered pads, lighter and thinner but expensive.

Hugh Jarce - 28/10/04 at 09:27 PM

quote:
Originally posted by JoelP
Anyone know if the discs have to be iron? i dont mean carbon, just something a bit lighter.


I've had some success with aluminium discs. Plain aluminium (I forget the grade now...may have been 5083) worked OK, but had to be replaced every few race days. I experimented with plated aluminium, but early attempts suffered from delamination and surface crazing.
I later found success with a ductile electroless nickel/ceramic coating, so there were no problems with delamination or galling . The discs were simply water cut and bead blasted prior to being plated by a local firm.
The bead blasting was not to enhance the adhesion of the plating (it will stick permanently to highly polished aluminium), but rather to impart a better surface texture for braking effects. The plating is bullet proof (50-70 Rockwell C with ring shear bond strength of 15,000-35,000 psi) and will tolerate anything that you can throw at it.
Not too expensive either.

JoelP - 28/10/04 at 09:52 PM

good suggestion mate. what hubs/calipers etc did you use these with, or did you make them go with whatever was needed?

Hugh Jarce - 28/10/04 at 10:07 PM

quote:
Originally posted by JoelP
good suggestion mate. what hubs/calipers etc did you use these with, or did you make them go with whatever was needed?

Yup, custom hubs and modified bike callipers.