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Old 01-25-09, 09:20 PM   #1
mattbieg892
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Disc Brakes on Newton Gravity FS with no caliper attachment

Hi, I've got a Newton Gravity FS Mountain Bike. It's pretty old so it doesn't have the disc brake attachment holes. I had to replace my wheel about a month ago, and ended up getting a wheel with the disc attachment for disc brakes from REI. Now that I have that, I am interested in upgrading from V-brakes to disc brakes.

Now, there is an attachment point on the frame, but it is a lot smaller than the normal disc brake mounts. I'm trying to figure out what kind of adapter I will need to buy. I found something on ebay: http://cgi.ebay.com/New-Bike-Rear-Di...3286.m20.l1116.

Will that ebay item work on my bike (see attached pictures), or if not, do you guys have any recommendations?

Thanks!
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Old 01-25-09, 09:43 PM   #2
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That's for a rack and panniers


You need this



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Old 01-25-09, 10:15 PM   #3
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ok, that makes more sense than the rod thing.
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Old 01-25-09, 10:45 PM   #4
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No need to have special disc hub - fits most brands on the market
??
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Old 01-26-09, 12:22 AM   #5
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Originally Posted by chelboed View Post
That's for a rack and panniers
No it isn't, that attachment on ebay is for putting a disc brake on on a non disc frame.

It's a similar disc brake converter to this one: http://www.therapycomponents.com/conversion.htm

and another similar converter from different brand: http://www.woodmancomponents.com/catalog/categorie.php?cat=dis&lang=en

Some Kona bikes have this type of attachment on them:

Kona D.O.P.E. System: http://www.konaworld.com/dope.htm

Kona Stinky with D.O.P.E. System: http://www.konaworld.com/09_stinkydeluxe_en.cfm

Last edited by cobba; 01-26-09 at 09:04 AM.
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Old 01-26-09, 07:14 AM   #6
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Oh...I mis-read the post. I didn't even notice his link. DOH!

I thought he was talking about the "double hole" tabs on the frame.
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Old 01-26-09, 08:37 AM   #7
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Originally Posted by chelboed View Post
Oh...I mis-read the post. I didn't even notice his link. DOH!

I thought he was talking about the "double hole" tabs on the frame.
+1....I got a kick out of that one.
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