Mystery Disc Brake Mount
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Author:  biggins [ Thu Nov 26, 2020 9:05 pm ]
Post subject:  Mystery Disc Brake Mount

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

20201126_195731.jpg [ 410.84 KiB | Viewed 990 times ]

Author:  hamster [ Fri Nov 27, 2020 9:08 am ]
Post subject:  Re: Mystery Disc Brake Mount

Looks like it's for the earlier disc mount spacing as on some Marzocchi forks.

Author:  coomber [ Fri Nov 27, 2020 10:13 pm ]
Post subject:  Re:

Yes as above. Pretty sure original z1s had this.

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

Author:  biggins [ Fri Nov 27, 2020 10:26 pm ]
Post subject:  Re: Mystery Disc Brake Mount

Thanks both

Author:  sam_white [ Sat Nov 28, 2020 11:35 am ]
Post subject:  Re: Re:

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.

Author:  hawkhill97 [ Sat Nov 28, 2020 9:53 pm ]
Post subject:  Re:

Pretty sure that's an adapter for the swingarm of a ca 1999 Marin Mount Vision?

Author:  coomber [ Wed Dec 02, 2020 10:17 am ]
Post subject:  Re:

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

Author:  hawkhill97 [ Thu Dec 03, 2020 12:00 am ]
Post subject:  Re:

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).

Author:  wesmamyke [ Tue Dec 08, 2020 12:50 pm ]
Post subject:  Re: Mystery Disc Brake Mount

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.

Author:  d8mok [ Tue Dec 08, 2020 12:59 pm ]
Post subject:  Re:


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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