Bicycle Mechanics - Old frame, new brakes

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View Full Version : Old frame, new brakes


Burnhead
07-30-07, 05:23 PM
I recently build my own bike, I was planning to finish today but I realized that I had a problem. My old frame is a little different in dimension than the new road bike frame. So I wonder if some brakes will fit my bike, because as you can see on the picture they are too short.

I have the same problem for the rear brake

Thx for helping me :)

Julien

http://i185.photobucket.com/albums/x221/Burnhead/Bikeproblem.jpg


DMF
07-30-07, 05:39 PM
That sure doesn't look like a new frame. What is it?

Blossom
07-30-07, 06:18 PM
I'm having the same issue that you are. For some background, I refer you to (as always), Sheldon Brown (http://sheldonbrown.com/reach). I've been looking around and I think that these are the options:

1. Find and older pair of single pivot calipers. Not as much stopping power as a double pivot.

2. Buy a pair of 'long reach' double pivot calipers, such as here. (http://www.nashbar.com/profile.cfm?category=600069&subcategory=60001014&brand=&sku=11499&storetype=&estoreid=&pagename=Shop%20by%20Subcat%3A%20Road%20Brakes) Unfortunately I've been having trouble finding a pair that is long enough for mine. I suspect that you will be in the same position. The Nashbar ones only go to 56mm (center of hole to center of braking surface).

3. A drop bolt. Sheldon Brown has a nice article on building a set here. (http://www.sheldonbrown.com/home-drop.html)

4. Cry out in frustration because the nice brakes that I got at an amazing price don't fit. Wait, that was me. :)

Edit: Oooo. Looking through Sheldon's website I found a pair that are long enough for me! Tektro! (http://sheldonbrown.com/harris/brake-calipers.html) Unfortunately they are $73!


matimeo
07-30-07, 06:23 PM
Those wheels look way too small for the fork. I assume you mean the frame is old and the parts are new. Some old bikes that had 27" tires just don't do well with 700c tires and shorter reaching brakes.

forensicchemist
07-30-07, 08:04 PM
are those Suntour Symmetric shifter levers??

Burnhead
07-30-07, 08:12 PM
Thank you Blossom, Ill probably go with the Tektro brakes, I need a 65mm reach so I'll probably buy it

Cya

Blossom
07-30-07, 08:16 PM
You're welcome. :)

Burnhead
07-31-07, 02:51 PM
Yes, you're right it is the Suntour Symmetric shifter levers

:)