Join Date: Apr 2010
Location: Sunnyvale, CA USA
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 46 Post(s)
Originally Posted by Nachoman
His five or six year old record rear brake broke.
The brake or just its return spring?
The springs are wear items which fatigue, fail periodically, and cost $5-$10 to replace (buying locally costs a bit more, and the double sided single pivot part is a couple dollars more expensive).
BR-RE008 is the spring for dual pivot Record (and many lower level/vintage combinations) brakes. Front and rear dual pivots are identical except for the center bolt and mounting nut lengths.
BR-RE208 (formerly BR-RE108) is the spring for rear "differential" single pivots
I find it easier to install the dual pivot return spring and then pop the steel ball in the center-pivoting brake arm's end over the cam. A cone wrench works well on the thin nut flats on the outside pivot.
On the rear differential brake I tighten two nuts against each other on its center bolt to keep it from turning when adjusting preload. The spring flips out of the way so you can get a wrench on the nut holding it to set preload and keep that nut parked when tightening the tall locking nut which also spaces the brake out from the frame's brake bridge.
Last edited by Drew Eckhardt; 04-01-14 at 02:07 PM.