Technical & Reference Section > Tech and Restoration

pro class help *updated*again* now with pics

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jimmyp:
Lets have some pics of the box  :smitten: :shocked: :)

AtariAger:

--- Quote from: Strikey on April 29, 2008, 06:14 PM ---I hate to bring it up but what about jimmyp's theory of the hole inside the bb from the seat tube? mine doesn't have that.
Also the weight thing..mine is the same weight overall as the pro class in the test but my frame weighs in heavier & the forks lighter than the test.

Any opinions?  :daumenhoch:

--- End quote ---

No worries...I have one of my Black Chrome frames hanging up right next to me...ONE hole coming from the downtube...no hole from seat tube.  So that theory is false...sorry jimmyp!   ;)

Also...the Pro Class is the only frame I have ever seen the b/b cup groove on.  Strikey...you can see it on your b/b and also in the picture I posted...another way of confirming a Pro Class.  The Super goose is flat all the way through.

Here is the inside shot of a Supergoose b/b...no ridge/groove

AtariAger:
Also...just measured the rear dropout thickness on the same Black Chrome frame...............

..........................2mm........................... :daumenhoch:

So there you go! 

Pro Class... :smitten:

Brandy Truffle:
i've just stripped a survivor Pro Class complete bike i bought from a local paper,even got the original shop receipts with it so i know it's kosha....

I dont have scales to weigh frameset etc,but can tell you this one DOESNT have the hole Jimmy talks about, but DOES have cup grooves in the bottom bracket.
Would be interesting to compare some frame numbers close to Jimmys to see if that was the norm in production & likewise to one that doesnt.


Being an ex engineer,who specialised in batch built components,i can honestly say i think small details such as that would have inevitably varied along the course of a production run. All in the name of "continuous product development etc etc.." Especially in this case as the details mentioned would not have been externally visual and your average punter wouldnt notice/care at the time...















Save a group of investigating 30 something Old Schoolers nearly 25 years later!  :LolLolLolLol:

FuNMoNsTeR:
Interesting thread.... 
 I bought this 'Pro Class' from a Rad Member a couple of months ago..... I have since had the original owner and restorer contact me thru eBay saying it is a SupergooseIII. When i asked who he sold it to he changed his mind.......said he had restored and sold on a SupergooseIII and a Pro Class and that the frameset i have is a Pro Class..... Have i had the wool pulled over my eyes???
 My frame weighs 4Lb 9ozs dry The rear dropouts are 2.5 mm thick. There is no seat tube hole in the BB shell and the BB is not stepped but smooth. Serial number is: H3001849
 Pictures: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=320239495662

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