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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  pro class wheels . . . forging . . .
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Author Topic: pro class wheels . . . forging . . .  (Read 3629 times)

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theRuler

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pro class wheels . . . forging . . .
« on: July 21, 2006, 03:25 PM »
are pro class wheels just arayas with holes drilled in them?

if i drill a set of arayas with the right sized holes in the right place, do i have pro class rims?

Offline diesel

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Re: pro class wheels . . . forging . . .
« Reply #1 on: July 21, 2006, 04:10 PM »
 :LolLolLolLol:

Not quite you'd still need the little sticker that runs around the valve hole!

Offline jT Racing

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Re: pro class wheels . . . forging . . .
« Reply #2 on: July 21, 2006, 04:11 PM »
are pro class wheels just arayas with holes drilled in them?

if i drill a set of arayas with the right sized holes in the right place, do i have pro class rims?
no, just fooked arayas
ding dong

theRuler

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Re: pro class wheels . . . forging . . .
« Reply #3 on: July 21, 2006, 04:37 PM »
so pro class wheels arent just drilled arayas then? 7x style?


Offline jT Racing

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Re: pro class wheels . . . forging . . .
« Reply #4 on: July 21, 2006, 04:40 PM »
wouldn't know to be honest G lad, but i wouldn't do it. them holes look like either part of the forgeing or at least punched and not drilled.
ding dong

silentpartner

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Re: pro class wheels . . . forging . . .
« Reply #5 on: July 21, 2006, 04:55 PM »
when you read peoples discription they say '' drilled araya 7x's''. there was a guy from oz that had some done, and he was using them. though i'm sure it'll need to be more than a just drill 'em out at home job, you'll need to set up a jig so each one is the same

alan  ;)

Offline diesel

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Re: pro class wheels . . . forging . . .
« Reply #6 on: July 21, 2006, 05:04 PM »
There are two kinds:

There are stamped and unstamped - both kinds were produced by Araya for Mongoose.

So yes that's exactly what they are!

Offline stidds

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Re: pro class wheels . . . forging . . .
« Reply #7 on: July 21, 2006, 05:13 PM »
The early Pro-Class rims were exactly that, drilled Araya 7X, I have a couple of sets where you can see the remains of the Araya stamp that has been drilled.  The later models didn't have the stamp as they were made for Mongoose for drilling.

Offline jT Racing

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Re: pro class wheels . . . forging . . .
« Reply #8 on: July 21, 2006, 05:17 PM »
are they drilled or punched before they are bent?
ding dong

theRuler

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Re: pro class wheels . . . forging . . .
« Reply #9 on: July 21, 2006, 05:35 PM »
well i will drill my arayas to suit my mongoose build.

and suit it they will.

Offline Steve P

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Re: pro class wheels . . . forging . . .
« Reply #10 on: July 21, 2006, 05:41 PM »
Go for it Graeme . . .  :daumenhoch:

Offline jT Racing

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Re: pro class wheels . . . forging . . .
« Reply #11 on: July 21, 2006, 05:44 PM »
well will you! :LolLolLolLol: just wondered, might have a go myself, allways liked pro class rims. reason why i asked, if they are punched, they will have a rounded rim and not if they are drilled, just good for authenticity, punching is impossible on a allready bent rim profile. but can countersink. gonna do it on my mitygoose when i see how yours turn out G. photo's asap please ;) still wouldn't do it to 20"arayas but those 16"steel jobo's on the pit bike need all the weightloss they can get.
ding dong

matt

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Re: pro class wheels . . . forging . . .
« Reply #12 on: July 21, 2006, 05:50 PM »
they are drilled not punched   ;)

weston

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Re: pro class wheels . . . forging . . .
« Reply #13 on: July 21, 2006, 05:51 PM »
they were made at the same place so you decide ::)

Offline jT Racing

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Re: pro class wheels . . . forging . . .
« Reply #14 on: July 21, 2006, 05:55 PM »
cheers matt :daumenhoch:
ding dong

theRuler

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Re: pro class wheels . . . forging . . .
« Reply #15 on: July 21, 2006, 06:15 PM »
were pro class rims polished or just annodised?

and what size is the hole?

selfpreservation

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Re: pro class wheels . . . forging . . .
« Reply #16 on: July 21, 2006, 06:19 PM »
the front is 10mm and the rear is 6mm i think theyre anno

theRuler

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Re: pro class wheels . . . forging . . .
« Reply #17 on: July 21, 2006, 06:25 PM »
10mm front 6 rear?

i right i will buy some new drill bits and do this over the weekend

Offline sawzall

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Re: pro class wheels . . . forging . . .
« Reply #18 on: July 21, 2006, 08:30 PM »
im sure they were done in chrome and anno,the holes are 10mm front and rear :daumenhoch:
British race frames and race clothing wanted

selfpreservation

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Re: pro class wheels . . . forging . . .
« Reply #19 on: July 21, 2006, 11:28 PM »
i am sure i  have read in the spec that the front were 10mm and the back were 6mm for the extra strength  check some of the scans on here

selfpreservation

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Re: pro class wheels . . . forging . . .
« Reply #20 on: July 21, 2006, 11:36 PM »
sorry this is what i read

Mongoose Pro Class 4 Sprint Rims

These are a product I can thoroughly recommend ,although unlike other parts in this section, I doubt you will find any of these on the market today!

These are my rims and they date back to 1989 - can you believe it? They are Mongoose Pro Class 4 Sprint Rims and they are a very high-end product. They were a very limited edition release at the time, because they are the only rims that I’ve ever seen that were sold in pairs and were front and rear specific.

They are made of a very rare magnesium alloy, unlike most mass produced aluminium rims
click to enlarge
nowadays, and in between every second spoke they have a hole punched out to save weight (10mm on front and 6mm on rear) as they are actually built for racing. Unlike other race wheels, however, they have 48 spokes due to the lightness of each rim, thus giving a strength to weight ratio better than any other wheelset on the market.

This has been proved as I have been riding them for so long and I'm not the smoothest guy out there most people didn't want to fork out £200 just for two rims but Eric Rupes' design works so well they have outlasted what other cheap wheels couldn't.

Good luck finding a pair, as I believe only 200 pairs were made with only a handful coming to the UK due to the high price.

silentpartner

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Re: pro class wheels . . . forging . . .
« Reply #21 on: July 22, 2006, 02:43 PM »
maybe theses are later ones being 89  ??? , they started around 81/82 didn't they?  :-\

selfpreservation

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Re: pro class wheels . . . forging . . .
« Reply #22 on: July 22, 2006, 03:38 PM »
looks like they are proclass 4 my mistake

rew115

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Re: pro class wheels . . . forging . . .
« Reply #23 on: July 23, 2006, 08:37 PM »
My 2 geese have 10mm front and rear
  They are orig as ive had 1 from new 83,both sets have the well faded decal round valve.
   
  POSTED THIS AD BEFORE,BUT WORTH ANOTHER GO.IM AFTER A SET OF 1 3/8" PRO CLASS RIMS FOR A MINT MINI IVE GOT.
 :angrysoapbox:
 

slurp

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Re: pro class wheels . . . forging . . .
« Reply #24 on: July 23, 2006, 09:17 PM »
10mm front 6 rear?

i right i will buy some new drill bits and do this over the weekend

mate,you will need to buy a reamer to,as just drilling will not get a good finish.if you really wanted to go over board  cold working the hole after will add strength to it,but that involves special equipment.

dave :daumenhoch:

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