SIngle pivot brakes

Ben6899
Ben6899 Posts: 9,686
edited March 2010 in Workshop
Setting up the rear brake on my Giant.

Veloce skeleton - single pivot. Why does the non-drive side pad refuse to move away from the rim when braking force is released?

Am I doing something fundamentally wrong? Park Tool (for once) hasn't helped me and the Campag manual is no good either.

I feel stupid: built whole freakin bikes before and I'm having my pants pulled down by a single pivot brake!

Thanks

Ben
Ben

Bikes: Donhou DSS4 Custom | Condor Italia RC | Gios Megalite | Dolan Preffisio | Giant Bowery '76
Instagram: https://www.instagram.com/ben_h_ppcc/
Flickr: https://www.flickr.com/photos/143173475@N05/

Comments

  • Ben6899
    Ben6899 Posts: 9,686
    Seriously guys...

    Can nobody offer a smidgen of advice? I'm obviously doing something basically wrong... and I need this fucker working by 12pm tomorrow.
    Ben

    Bikes: Donhou DSS4 Custom | Condor Italia RC | Gios Megalite | Dolan Preffisio | Giant Bowery '76
    Instagram: https://www.instagram.com/ben_h_ppcc/
    Flickr: https://www.flickr.com/photos/143173475@N05/
  • balthazar
    balthazar Posts: 1,565
    Single pivot brakes are inherently unpredictable this way; uneven release was one reason for the development of —more satisfying to set up— dual pivot brakes. You should be able to get the spring tension as balanced as possible by turning the main assembly shaft with a slim (cone) spanner, between the brake arms and the frame. You may need to slacken the Allen fixing nut, and tightening it again may upset the setting. It's trial and error.

    Your brake has the advantage that it will track a buckled wheel, however, whic dual-pivot brakes will not.
  • balthazar
    balthazar Posts: 1,565
    edited March 2010
    Double post... sorry...
  • Ben6899
    Ben6899 Posts: 9,686
    Thanks balthazar, I'll give that a try in the morning.
    Ben

    Bikes: Donhou DSS4 Custom | Condor Italia RC | Gios Megalite | Dolan Preffisio | Giant Bowery '76
    Instagram: https://www.instagram.com/ben_h_ppcc/
    Flickr: https://www.flickr.com/photos/143173475@N05/
  • sturmey
    sturmey Posts: 964
    Agree single pivot brakes are a pain to centre- it takes time with an allen key and some cursing.
    Efficiency wise though my 105 single pivot short reach brakes have awesome stopping power - better than some modern stuff I've used.
  • Ben6899
    Ben6899 Posts: 9,686
    Sorted. Thanks chaps.
    Ben

    Bikes: Donhou DSS4 Custom | Condor Italia RC | Gios Megalite | Dolan Preffisio | Giant Bowery '76
    Instagram: https://www.instagram.com/ben_h_ppcc/
    Flickr: https://www.flickr.com/photos/143173475@N05/