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 Post subject: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 12:55 pm 
Retro Guru

Joined: Tue Aug 02, 2011 9:24 pm
Posts: 313
Are these any good?

http://www.ebay.co.uk/itm/Retro-GT-Zask ... 232aab2dfe


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 Post subject: Re: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 1:40 pm 
Gold Trader / MacRetro rider
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Joined: Sun May 25, 2008 11:03 am
Posts: 18215
Location: Sunny Glasgow
dan_bo wrote:


I really dont like the look of the placement of the drilled holes. Thats asking for trouble :shock:


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 Post subject: Re: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 1:59 pm 
Retro Guru

Joined: Tue Aug 02, 2011 9:24 pm
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dyna-ti wrote:
dan_bo wrote:


I really dont like the look of the placement of the drilled holes. Thats asking for trouble :shock:


I was half thinking much the same- Just wondering if anyone had any experience of using 'em....


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 Post subject: Re: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 3:23 pm 
Retro Guru
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Joined: Thu Jul 26, 2012 1:31 pm
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Location: The Cave of Shame
urrrgghhh. Drilling through your rear drop outs sounds iffy enough. No mention of a drill template or nylock fittings that avoid fouling the spokes/hub. I noticed one of the pictures shows a slot rather than just a hole - cant imagine the average DIY'er managing that with their black and decker.

One for experimentalists only me thinks.


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 Post subject: Re: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 3:41 pm 
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Joined: Tue Aug 02, 2011 9:24 pm
Posts: 313
secret_squirrel wrote:
urrrgghhh. Drilling through your rear drop outs sounds iffy enough. No mention of a drill template or nylock fittings that avoid fouling the spokes/hub. I noticed one of the pictures shows a slot rather than just a hole - cant imagine the average DIY'er managing that with their black and decker.

One for experimentalists only me thinks.


I was gonna chuck one on an old pre-dented Zaskar. I'll let you know.....


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 Post subject: Re: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 9:46 pm 
Gold Trader / MacRetro rider
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Joined: Sun May 25, 2008 11:03 am
Posts: 18215
Location: Sunny Glasgow
Must admit to being a fan of the hope system. Granted youre stuck with a C2 which isnt maybe ideal for todays riding speeds/styles, unless of course you pick up the IS mount version and i saw one of those sell a couple of weeks ago for about 35 inc posting(ebay) mine cost me similar(not for sale srry)
The other plus is its a hope hub/wheel so the quality is there also.

Skips off to hunt out a couple of example pics................................................


Last edited by dyna-ti on Wed Jun 05, 2013 9:49 pm, edited 1 time in total.

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 Post subject: Re: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 9:49 pm 
King of the Skip Monkeys
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Joined: Wed Nov 07, 2007 4:34 pm
Posts: 26174
Location: Moomin Valley
Fook no! I used and old (but new at the time) A2Z disc adapter with just the one hole into my frame

Image

The rear drop-outs on the earlier zaskars are thick and wide (just like me) so the hole wasnt an issue.

Image


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 Post subject: Re: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 9:57 pm 
Gold Trader / MacRetro rider
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No2- and IS mounts :D Helpful ?


Attachments:
disc mount 004 (Large) (Small) (2).JPG
disc mount 004 (Large) (Small) (2).JPG [ 32.16 KiB | Viewed 366 times ]
sony_md_036_199.jpg
sony_md_036_199.jpg [ 110.94 KiB | Viewed 367 times ]
disc mount 001 (Large) (Small).JPG
disc mount 001 (Large) (Small).JPG [ 50.2 KiB | Viewed 367 times ]
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 Post subject: Re: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 10:04 pm 
Old School Grand Master
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Joined: Sun Sep 05, 2010 1:10 am
Posts: 4756
Location: Heathfield, East Sussex
To be perfectly honest there's not an awful lot of difference between one of those and any mount you buy to fit calipers for different size disks...

...the issue is with the lack of bracing for the frame against the torsional forces involved in using a disk brake; hence the torque arm with the A2Z that transfers the torsional force to the brake boss/seatstay which the frame is designed for.


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 Post subject: Re: Rear disc adaptors
PostPosted: Wed Jun 05, 2013 11:04 pm 
Retro Guru
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Joined: Thu Jul 26, 2012 1:31 pm
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Location: The Cave of Shame
dyna-ti wrote:
No2- and IS mounts :D Helpful ?

Don't suppose you have a side view of the IS (green frame) one?


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