Reuse Barb
Moderator: robbosmans
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I'm planning to replace a badly scrapped Shimano road lever tomorrow night. I visited a few LBS earlier today and none of them have new barb to spare. I know the new lever already have new olive installed so that's good. But can I simply reconnect the brake hose wo putting in new barb? How about if I want to shorten the hose a little. Can I reuse the barb assuming I can get it out?
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I've disconnected and reconnected levers with no ill effects afterwards, but YMMV. If it suddenly fails and you die, I'll go to your funeral.
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I have used a Dremel to grind away the hose from around a barb so I could reuse it, still alive!ipenguinking wrote: ↑Mon Sep 12, 2022 1:48 amI'm planning to replace a badly scrapped Shimano road lever tomorrow night. I visited a few LBS earlier today and none of them have new barb to spare. I know the new lever already have new olive installed so that's good. But can I simply reconnect the brake hose wo putting in new barb? How about if I want to shorten the hose a little. Can I reuse the barb assuming I can get it out?
The olive compresses the hose against the barb. You may be ble to reclaim the barb but you’ll have to cut the olive and cut the hose to release the barb. I don’t see any way of just saving the barb without sacrificing the olive.ipenguinking wrote:I'm planning to replace a badly scrapped Shimano road lever tomorrow night. I visited a few LBS earlier today and none of them have new barb to spare. I know the new lever already have new olive installed so that's good. But can I simply reconnect the brake hose wo putting in new barb? How about if I want to shorten the hose a little. Can I reuse the barb assuming I can get it out?
I usually cut them off as close as I can and use a new barb and olive. I’m more surprised you can’t find any new olive and barbs.
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I wouldn't try to re- use an old barb extracted from a hose. The barb prevents the olive crushing the hose and potential damage over time by supporting the hose from the inside, a bit like a steerer expander supports a carbon steerer tube and prevents the stem crushing it.
Trying to extract a barb and then re-inserting it into a new piece of hose is bound to lead to a problem with the structure of the hose over time.
It's simply not worth is in brakes, especially the front.
Trying to extract a barb and then re-inserting it into a new piece of hose is bound to lead to a problem with the structure of the hose over time.
It's simply not worth is in brakes, especially the front.
Giant Propel Advanced SL Red Etap 11s Easton EC90 wheels CeramicSpeed BB Zipp SL70 bars 6.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
SL8 build with Craft CS5060 Wheels in progress
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I've reused barbs, many times, haven't died yet (or had any leaky brakes).
Sometimes they snap though, and i do have a small stock of spares.
Sometimes they snap though, and i do have a small stock of spares.
You're a braver man than me.......I just wouldn't risk it for the sake of a cheap barb. Disk brakes can be hard to judge, there's quite a few points where the system can deteriorate (pad contamination, lazy pistons, cylinder seals, air in the hoses, etc.). Would prefer to eliminate as many as possible.ghostinthemachine wrote: ↑Mon Sep 12, 2022 3:07 pmI've reused barbs, many times, haven't died yet (or had any leaky brakes).
Sometimes they snap though, and i do have a small stock of spares.
Giant Propel Advanced SL Red Etap 11s Easton EC90 wheels CeramicSpeed BB Zipp SL70 bars 6.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
SL8 build with Craft CS5060 Wheels in progress
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- Joined: Sun Jan 09, 2005 5:14 pm
- Location: Sunny So Cal
Finally I found them at local REI. And it seems like they have bunch of them sitting in the part bin.
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You can buy a bunch of about 30 for about a fiver on ebay...why bother trying to extract an old one unless you're stuck in the middle of nowhere trying to bodge together a solution?
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I wonder how good are those non-Shimano barb and olive? I see them available on Amazon for much less. Next day delivery too.
I purchased them from Amazon BH90 Brake Olive and Barb - 12 PCS Brakeipenguinking wrote: ↑Tue Sep 13, 2022 2:20 amFinally I found them at local REI. And it seems like they have bunch of them sitting in the part bin.
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"People should stop expecting normal from me... seriously, we all know it's never going to happen"
"People should stop expecting normal from me... seriously, we all know it's never going to happen"
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