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PostPosted: Thu May 28, 2020 4:29 pm 
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legrandefromage wrote:
Could be a manufacturer location or something or maybe just a big letter to muse upon 30 years later


Hmmmmm........


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PostPosted: Thu May 28, 2020 7:19 pm 
retrobike rider
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I think that is the grouping, so you know which cogs go together.

You can tell the dull from the shiney chrome quite easily, just check my dull one.


every cog is made the same, it's just the finish that changes.


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 Post subject: Re: Re:
PostPosted: Thu May 28, 2020 8:11 pm 
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FluffyChicken wrote:
I think that is the grouping, so you know which cogs go together.

You can tell the dull from the shiney chrome quite easily, just check my dull one.


every cog is made the same, it's just the finish that changes.


Cheers FC.... I think I’m going to pick the best HG-70 as I’m planning a DX build..

As for the chromed HG90’s they’re spending the night in some rust treatment..

Can I just check something though... was the bolting together system reserved for the HG90’s & 70’s only?
In other words, if it’s riveted, it’s HG50 or lower? (With the XTR being the exception)


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 Post subject: Re:
PostPosted: Fri May 29, 2020 8:55 am 
retrobike rider
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XTR (mostly) fell apart by themselves when that eventually came out and the XT was rapidly moved to the same system when compact came out but using a method that didn't fall apart (11tooth) ;-)
as for the bolts
I think so, we would grind/hit the tops off to separate the cogs or replacing warm one or going "modded to 8 speed".
The bolts are just for convenience, you didn't need them. it may help a little bit from individual movement but Shimano freehub bodies are tough.

ah.. found the bikepro link
http://www.bikepro.com/products/freewhe ... mcass.html


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 Post subject: Re: Re:
PostPosted: Fri May 29, 2020 9:49 am 
BoTM | rBoTM | rider
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Joined: Wed Jan 17, 2018 8:42 pm
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Location: VCC Member 5558 East Riding of Yorkshire
FluffyChicken wrote:
XTR (mostly) fell apart by themselves when that eventually came out and the XT was rapidly moved to the same system when compact came out but using a method that didn't fall apart (11tooth) ;-)
as for the bolts
I think so, we would grind/hit the tops off to separate the cogs or replacing warm one or going "modded to 8 speed".
The bolts are just for convenience, you didn't need them. it may help a little bit from individual movement but Shimano freehub bodies are tough.

ah.. found the bikepro link
http://www.bikepro.com/products/freewhe ... mcass.html


Cheers Fluff, that made my coffee break :D


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PostPosted: Fri May 29, 2020 11:41 am 
BoTM | rBoTM | rider
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Location: VCC Member 5558 East Riding of Yorkshire
Right, after a nights deep bath in a rust converter and a scrub up this morning, I’m keeping the ‘88 HG70, ‘89 HG90 & the ‘90 HG70 (1,2 & 3)

That leaves a ‘91 HG50 & a ‘94 HG90 up for grabs, just want the price of a pint & postage...

Now just soaking in oil....


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PostPosted: Fri May 29, 2020 11:54 am 
King of the Skip Monkeys
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Location: Bournemouth's most wanted
HG90 please mister!


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