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Disc Brake on Older Frame.... Opinions

445 Views 3 Replies 2 Participants Last post by  AgentHubcap
Hi,

I have a 1999 Schwinn Homegrown frame. The frame is still good and I really like it. It's light, it's held up remarkably well, so I would really like to keep it.

I am trying to find a good disc brake for the rear that works well. Right now I am using an A2Z AD-PMR Assembly I (seen at http://www.a2zcomponents.com/OLD-web/Adapter/adap01.htm#ad0 ) ... the deal is that this required I put a 7" rotor on the rear (over the 6" stcok). I did this with an avid 7", but I've noticed that the bracket slightly flexes, also the rotor flexes and can rub the frame.

The other problem is that I bought a Promax caliper for the rear. But since the cable has tobe routed over the top tube, down theseat post tube, and then across the chainstay tube to the caliper. That's quite a bit of tubing and puts w pretty hard bends in the tube.

All I know is now, it is extremely hard to lock of the rear brake or get good breaking out of it. Could the be caliper related? Related with the cable routing? Can anyone offer any suggestions.
1 - 4 of 4 Posts
why not just go with a good set of v's in back and disks up front?
re:

AgentHubcap said:
why not just go with a good set of v's in back and disks up front?
Is that okay to do? I have heard that running two different brakes like that is not really good. I've not heard reasons though. I did that for 1 year and at races I got all sorts of comments from people telling me not to do that.

Any opinions on that?
rallyrabbit said:
Is that okay to do? I have heard that running two different brakes like that is not really good. I've not heard reasons though. I did that for 1 year and at races I got all sorts of comments from people telling me not to do that.

Any opinions on that?
I've got a buddy with that configuration on his downhill bike. I have no idea why it would be bad though. The only thing I can come up with is that the brakes would feel different, but functionally they should be the same.
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