You are reading a single comment by @graeme_the_bike_tech and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@graeme_the_bike_tech
Assuming that with the brake removed from the bike and with no cable in, when you squeeze it, it should spring open.
If it doesn't and if, when you disconnect the spring (pop it out of it's channel, don't loose the little plastic sleeve it runs in) the pivots move freely, then it's the spring - we can post you one of those.
On the other hand, in some of these cases we find it's the cable itself, so it's generally worthwhile fitting a new inner (don't just unclamp the inner and pull it backwards through the sheath, the part that gets spread by the pinchbolt will score the teflon outer cable liner, cut it between the adjuster and pinch bolt).
HTH
Graeme
Velotech Cycling Ltd | Campagnolo main Service Centre (UK)