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 Post subject: Okay, i'm stumped
PostPosted: Sun Nov 03, 2013 5:35 pm 
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Joined: Fri Feb 03, 2012 6:36 am
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Location: Northwest USA
Just picked these forks up for a 80's mt bike i'm slowly gathering parts for.

Looking them over last night I noticed that the brake bosses are rotated 180 degrees from a normal canti position.

What's up with these bosses, anybody seen these before?


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 Post subject: Re: Okay, i'm stumped
PostPosted: Sun Nov 03, 2013 6:07 pm 
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Joined: Mon Feb 11, 2008 9:42 am
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Crap quality control would be my guess!
You'll need a brake with the spring holder included (like the old onza ho). Or get a pair of springs and modify them.


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 Post subject: Re: Okay, i'm stumped
PostPosted: Sun Nov 03, 2013 7:37 pm 
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Okay mystery solved, I think.

Searched various topics and now i'm thinking these bosses were designed for the ultra wide cantis from the early-mid 80's, like the Dia-Compe's 980's.

Found this picture from a Miyata:


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 Post subject: Re: Okay, i'm stumped
PostPosted: Sun Nov 03, 2013 7:56 pm 
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You mean "not low profile" cantis?

My current high profile cantis use the holes in the bosses for the springs, so did the ones I used in the 80s and 90s.

I think that brake you've shown there ^^^^^ is broken, there is no straddle wire, yet it still hasn't flopped down. As there is no spring tension........


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 Post subject: Re: Okay, i'm stumped
PostPosted: Sun Nov 03, 2013 8:24 pm 
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Yep, no springs on those brakes, nor are they the super wide profile 980's. Just posted the pic for the brake boss reference.

I wonder if you could just flip the springs in 980's to work on the outside tension holes? I have a set and will check.


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