Mountain Biking - Disc Brakes on Newton Gravity FS with no caliper attachment

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mattbieg892
01-25-09, 08:20 PM
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-Disc-Brake-Adapter-Kit-170mm-Silver_W0QQitemZ370109891400QQcmdZViewItemQQptZCycling_Parts_Accessories?_trksid=p3286.m20.l1116.

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

Thanks!

ed
01-25-09, 08:43 PM
That's for a rack and panniers


You need this (http://www.a2zcomponents.com/ada.htm)


http://www.a2zcomponents.com/Adapter/image/Others/DM-UNI.jpg
mattbieg892
01-25-09, 09:15 PM
ok, that makes more sense than the rod thing.

yellowjeep
01-25-09, 09:45 PM
No need to have special disc hub - fits most brands on the market

??
cobba
01-25-09, 11:22 PM
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 (http://www.therapycomponents.com/conversion.htm)

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

Kona Stinky with D.O.P.E. System: http://www.konaworld.com/09_stinkydeluxe_en.cfm (http://www.konaworld.com/09_stinkydeluxe_en.cfm)
ed
01-26-09, 06:14 AM
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.
mtnbiker66
01-26-09, 07:37 AM
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.