Zippy
New Member
- Location
- Camborne, Cornwall
These are on a Specialised Hard Rock MTB. Centre pull brake system where the brake cable runs through a rigid sleeve on the centre pull arch.
Problem is the caliper which the cable clamps into is not returning under tension, can be freed by hand but goes with a clunk like soething is holding the caliper back or the calipe has been pulled into the rim too tightly.
I have removed and greased (lithium) both calipers, return springs are on maximum tension, new cable oiled into brake sleeve at handlebar end.
Cable and calipers seem to pull in smoothly, but this one caliper does not return unless I pull it out by hand.
Brake blocks are slightly worn and I have tried adjusting these to be nearer the rims so the calipers have less to travel, but this does not help.
Ideas please before I run the embarrsment of one of those events where they fix your bike for free while encouraging folks to cycle more? (That's next Sunday - can't wait 'til then!).
Problem is the caliper which the cable clamps into is not returning under tension, can be freed by hand but goes with a clunk like soething is holding the caliper back or the calipe has been pulled into the rim too tightly.
I have removed and greased (lithium) both calipers, return springs are on maximum tension, new cable oiled into brake sleeve at handlebar end.
Cable and calipers seem to pull in smoothly, but this one caliper does not return unless I pull it out by hand.
Brake blocks are slightly worn and I have tried adjusting these to be nearer the rims so the calipers have less to travel, but this does not help.
Ideas please before I run the embarrsment of one of those events where they fix your bike for free while encouraging folks to cycle more? (That's next Sunday - can't wait 'til then!).