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-   -   Adjust Avid 1D V-brake- no tension screw for springs (https://www.bikeforums.net/bicycle-mechanics/726410-adjust-avid-1d-v-brake-no-tension-screw-springs.html)

LVRider 04-09-11 11:41 AM

Adjust Avid 1D V-brake- no tension screw for springs
 
I'm trying to get my Avid 1D V-brakes adjusted and centered- there is no screw on the side of the arm to adjust spring tension. I have been unable to get them perfectly centered- one side always hits before the other. I know I can put a wrench on the spring flats while tightening the mounting bolt, but is there a trick to getting them centered? Thanks.

reptilezs 04-09-11 01:53 PM

post a pic of the brake or just bend the spring

jimc101 04-09-11 02:31 PM

Are you sure they are called 1D, think is should be 'Single Digit'; this will be prefixed by a number, normally 3,5 or 7

If you look at the manufactures website, there are tech docs on there, which will show how to setup / adjust

http://www.sram.com/en/service/avid/...D=1&subcatID=2

DO NOT BEND THE SPRING, this will not adjust the brake, will invalidate any warranty. Look at the instructions, and adjust it properly

LVRider 04-09-11 02:41 PM

They are one of the older Avid V-brakes, from 1997. As far as I know, they only say 1D on the brake, aka SingleDigit.

jimc101 04-09-11 02:45 PM

Pictures then please so we can see what you have

LVRider 04-09-11 03:47 PM

1 Attachment(s)
This is one I found online, the bike is currently at my LBS for some front derailier work.
http://bikeforums.net/attachment.php...hmentid=197130

jimc101 04-09-11 04:03 PM

These look like the SD 10 brakes, which appear to be very similar to the current SD3 & 5 brakes

If you look at the manual for the Single Digit 3's you will see a piece on the back of the brake where it attaches to the fork/frame brake boss, this has a crosshead screw or allen wrench bolt, which is the alignment adjustor, It's clearly visible in the photo on this link. http://www.socaltrailriders.org/foru...xt-739-rd.html

If this is missing, the brake can not be adjusted, and really should be replaced by a complete unit

LVRider 04-09-11 04:48 PM


Originally Posted by jimc101 (Post 12482987)
These look like the SD 10 brakes, which appear to be very similar to the current SD3 & 5 brakes

If you look at the manual for the Single Digit 3's you will see a piece on the back of the brake where it attaches to the fork/frame brake boss, this has a crosshead screw or allen wrench bolt, which is the alignment adjustor, It's clearly visible in the photo on this link. http://www.socaltrailriders.org/foru...xt-739-rd.html

If this is missing, the brake can not be adjusted, and really should be replaced by a complete unit

There are no alignment adjusters, just the spring attached to the square wrench flat. I was considering just replacing them with modern Avid V-brakes that have screw spring adjusters, but was hoping to get a few more miles out of them.

reptilezs 04-09-11 05:39 PM

im going to guess you put a cone wrench on the square in the back and loosen the mounting bolt a little, tension with cone wrench and tighten the mounting bolt. the left brake spring also looks like it has been bent


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