Rear vbrake not springing back
05-23-18, 09:24 PM
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Rear vbrake not springing back
Hi, I got a problem recently that when I hit the break level, the rear brake on my road bike won't spring back. I've remove the cable and it's spring back, so is that the brake problem or my cable problem ? I've changed another vbrake on it too, and it's work on the first ride, but then the same problem happened again.
thanks alot
thanks alot
05-23-18, 11:35 PM
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Most likely a brake cable problem. If you haven’t replaced them or the housings in a year or two, do it now. Make sure all the brake housings bend smoothly and align well at the stops. Make sure the cable has no kinks anywhere, right up to the clamp bolt. The cable should slide very easy pushing or pulling it through the housing.
Make sure the lever works well while you are at it. The noodle guide on the brake needs to be clean and very smooth. If it has a liner, pull it out and check. Those need replacing sometimes too.
You may have 3 holes for the spring anchors under each cantilever arm. Switch to the next tighter notch. Usually the middle notch in the rear, due to the long cables, and the lightest notch in front. If there are spring adjustment screws giving them a turn may be enough (mainly those are for centering).
Finally, a very light coating of PTFE lube on the cable helps. Very little. Wipe it on and then wipe it all off before inserting into the housing. Any more and it gets sticky.
Make sure the lever works well while you are at it. The noodle guide on the brake needs to be clean and very smooth. If it has a liner, pull it out and check. Those need replacing sometimes too.
You may have 3 holes for the spring anchors under each cantilever arm. Switch to the next tighter notch. Usually the middle notch in the rear, due to the long cables, and the lightest notch in front. If there are spring adjustment screws giving them a turn may be enough (mainly those are for centering).
Finally, a very light coating of PTFE lube on the cable helps. Very little. Wipe it on and then wipe it all off before inserting into the housing. Any more and it gets sticky.
Last edited by catgita; 05-23-18 at 11:41 PM.
05-24-18, 08:14 AM
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or return spring anchor pin is not engaged in the hole in the frame ..
Did a shop tune up.. mounting bolt loose.. pin no longer in its place.
Did a shop tune up.. mounting bolt loose.. pin no longer in its place.
05-24-18, 08:50 AM
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Hi, I got a problem recently that when I hit the break level, the rear brake on my road bike won't spring back. I've remove the cable and it's spring back, so is that the brake problem or my cable problem ? I've changed another vbrake on it too, and it's work on the first ride, but then the same problem happened again.
thanks alot
thanks alot
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Stuart Black
Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
05-28-18, 07:18 AM
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Thank for all the feed back , so I pulled off my cable and have a check, the new cable I get last month was busted in the middle so for now I give a good tension of the cable and it's work fine . So should I get another new set of cable?
my friends fully recommend me to get Teflon coated cable for longer use and better performance
my friends fully recommend me to get Teflon coated cable for longer use and better performance
