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 Post subject: Mystery Disc Brake Mount
PostPosted: Thu Nov 26, 2020 9:05 pm 
Old School Hero

Joined: Wed Jan 10, 2007 3:47 pm
Posts: 226
Location: Kent
I was given a load of old bike parts by my brother, in there is this brake mount. The top holes are IS 51mm Standard, the bottom holes are 38mm ctc. Any ideas what standard this is or where it may be used? Brother can't remember, I blame his age.

It is a flat plate without threads in any of the holes

Ta Chris


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PostPosted: Fri Nov 27, 2020 9:08 am 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 10487
Location: New Forest, UK
Looks like it's for the earlier disc mount spacing as on some Marzocchi forks.


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 Post subject: Re:
PostPosted: Fri Nov 27, 2020 10:13 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 22, 2009 11:09 am
Posts: 9793
Location: Devon
Yes as above. Pretty sure original z1s had this.

If so, would be in demand I'd expect!


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PostPosted: Fri Nov 27, 2020 10:26 pm 
Old School Hero

Joined: Wed Jan 10, 2007 3:47 pm
Posts: 226
Location: Kent
Thanks both


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 Post subject: Re: Re:
PostPosted: Sat Nov 28, 2020 11:35 am 
Retro Guru
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Joined: Wed May 19, 2010 2:55 pm
Posts: 311
Location: Norwich, UK
coomber wrote:
Yes as above. Pretty sure original z1s had this.


I'm not sure about that, a mount for a Z1 would need to have some offset to it or the caliper wouldn't line up with the disc.


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 Post subject: Re:
PostPosted: Sat Nov 28, 2020 9:53 pm 
Old School Hero

Joined: Tue Jan 19, 2016 1:49 pm
Posts: 169
Pretty sure that's an adapter for the swingarm of a ca 1999 Marin Mount Vision?


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 Post subject: Re:
PostPosted: Wed Dec 02, 2020 10:17 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 22, 2009 11:09 am
Posts: 9793
Location: Devon
Not sure about the marin. If that was like the b17 the caliper need to be 90°, as bolts frame downward, and brakes on side if that makes sense


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 Post subject: Re:
PostPosted: Thu Dec 03, 2020 12:00 am 
Old School Hero

Joined: Tue Jan 19, 2016 1:49 pm
Posts: 169
Marin swingarms used a few different styles of brake adapter. That one looks exactly like the one for a 1999/2000 third/forth generation swingarm (I built one up a couple of years ago and had to source one).


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PostPosted: Tue Dec 08, 2020 12:50 pm 
Dirt Disciple

Joined: Sun Apr 10, 2016 9:22 pm
Posts: 87
Also I think for a Z-1 mount one of those sets of bolt holes would be the smaller M5, they wouldn't all be standard M6.


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 Post subject: Re:
PostPosted: Tue Dec 08, 2020 12:59 pm 
Retro Guru

Joined: Sat Oct 25, 2008 12:17 am
Posts: 2200
Location: Chesterfield
Image

I’ve got one of those here too

And I know exactly what it came from ...... but that spoils the fun a bit doesn’t it?


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